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 You need JRE Version 8, or later.
 
-Microsoft Windows and Apple Mac OS X users should visit https://www.java.com
+Microsoft Windows and Apple macOS users should visit https://www.java.com
 and download the latest Java executable for their system.
 
 Linux users should visit http://www.oracle.com/technetwork/java/index.html
Index: README.md
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
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diff --git a/README.md b/README.md
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+# <img height="40" width="40" src="resources/images/logo.svg" title="JOSM logo"/> JOSM - Java OpenStreetMap Editor
+
+JOSM is an extensible editor for [OpenStreetMap](https://www.openstreetmap.org/) (OSM) for Java 8+. It supports loading
+GPX tracks, background imagery, and OSM data from local sources as well as from online sources and allows to edit the
+OSM data (nodes, ways, and relations) and their metadata tags.
+
+
+## I. Install & Launch
+
+### Installation notes
+
+To run JOSM, you need:
+
+* The JOSM .jar file, e.g. `josm-tested.jar` or `josm-latest.jar`
+* Java Runtime Environment (JRE) 8, or later
+
+
+### How to get Java Runtime Environment
+
+You need JRE Version 8, or later.
+
+- **Microsoft Windows** and **Apple macOS** users should visit https://www.java.com and
+download the latest Java executable for their system.
+- **Linux** users should visit http://www.oracle.com/technetwork/java/index.html There is a Linux binary installer,
+which you must execute from a console, or use the mechanism of your distribution's packaging system.
+
+
+### How to launch
+
+- **Microsoft Windows** users launch by double-clicking on the .jar file.  
+If this does not work, open a command shell and type
+    ```shell
+    java -jar josm-latest.jar
+    ```
+    in the directory that holds the file. (Please replace josm-latest.jar with the name of your .jar file,
+if you aren't using the latest version.)
+
+- Under **Linux**, open a shell, go to the file directory and type
+    ```shell
+    java -jar josm-latest.jar
+    ```
+    to launch. If this does not work, try to set your `JAVA_HOME` variable to the java executable location (the
+root location, not the bin).
+
+- **macOS** users just click on the .jar file icon.
+
+
+## II. Development
+
+### How to get the source code
+
+Download it directly from the subversion at
+https://josm.openstreetmap.de/svn/trunk. To use the command line subversion
+client, type
+```shell
+svn co https://josm.openstreetmap.de/svn/trunk josm
+```
+
+
+### Files & directories
+
+This is an overview of the files and directories in the JOSM code repository:
+```
+- build.xml                 ant build file (standard way to create a JOSM binary)
+- CONTRIBUTION              list of major code contributors
+- gpl-2.0.txt, gpl-3.0.txt  full text of the GNU General Public License
+- LICENSE                   the JOSM license terms
+- native/                   OS-specific files
+    - linux/                  files useful for Linux distributions, including Appdata files, .desktop
+      files, Debian/Ubuntu scripts, man pages, icons, etc.
+    - macosx/                 files needed to create the MacOS package
+    - windows/                files needed to create the Windows installer
+    - josm.jnlp               Java Web Start launcher file (used on the website for the tested version)
+    - josm-latest.jnlp        Java Web Start launcher file (used on the website for the latest version)
+- nodist/                   files not included in JOSM binary
+    - data/                   data files that are useful for development, but not distributed
+        - exif-direction-example.jpg
+          sample image, that contains direction information in the EXIF header
+          (keys: Exif.GPSInfo.GPSImgDirectionRef, Exif.GPSInfo.GPSImgDirection)
+        - filterTests.osm       used for unit testing of the filter feature
+          (see test/unit/org/openstreetmap/josm/data/osm/FilterTest.java)
+        - Join_Areas_Tests.osm  some examples to test the 'join areas' feature
+        - *.*                   various other data files used for unit testing and as reference file
+        - projection/           projection files
+            - *.gsb               NTv2 grid files for projection support, downloaded by the
+              client on demand (see CONTRIBUTION)
+            - CHENyx06-Distribution.pdf
+              archive of terms of use for the CHENyx06.gsb file
+            - epsg                EPSG data file, taken from the proj.4 project
+              (see https://github.com/OSGeo/proj.4/blob/master/nad/epsg)
+            - esri                ESRI data file, taken from the proj.4 project
+              (see https://github.com/OSGeo/proj.4/blob/master/nad/esri)
+            - josm-epsg           customizations to the epsg file, used together with the epsg file
+              to generate data/projection/custom-epsg
+
+            - projection-reference-data.csv
+              reference data for projection tests
+              (see test/unit/org/openstreetmap/josm/data/projection/ProjectionRefTest.java)
+            - projection-regression-test-data.csv
+              regression data for projection tests
+              (see test/unit/org/openstreetmap/josm/data/projection/ProjectionRegressionTest.java)
+        - trans/*.lang          translation data for files that are not distributed, but used
+          by the server for localization of the services;
+          currently contains plugin descriptions in order to include translations
+          in the downloaded plugin list
+    - images/                 images, which are not for distribution, but may be useful later (e.g. high
+      resolution and vector versions)
+    - styles/                 files needed for map style maintenance
+        - potlatch2/README      infos on how to update the Potlatch 2 style from upstream sources
+- README                    this file
+- resources/                resource files that will be included in the JOSM jar file
+    - data/                   data files that will be included in the JOSM jar file
+        - fonts/                font files used for map rendering
+        - gpx/                  different color gradients for gpx drawing
+        - projection/           projection files
+            - custom-epsg         list of projection definitions, auto-generated file created by ant task 'epsg'
+        - security/*.pem        certificates that we like to accept for TLS connections, but are missing in the
+          default Java certificate store
+        - validator/            data files used by the JOSM validator
+            - *.cfg               files designed for the old tagchecker, still in use
+            - *.mapcss            default validation rules for the MapCSS-based tagchecker
+        - boundaries.osm        OSM file containing boundary data for the states of the earth, including
+          data for right and left-hand traffic
+        - defaultpresets.xml    data file for the core tagging presets
+        - help-browser.css      CSS file for the help sites (HTML content is downloaded from the website
+          on demand, but displayed inside the programm in a Java web browser component.)
+        - *.lang                translation data
+        - *.xsd                 xml schema files for validation of configuration files
+    - images/                 images distributed with the JOSM binary
+        - icons                 images for the Potlatch 2 style
+        - presets               images for the main mappaint style and the internal presets
+    - styles/                 map styles included in JOSM
+- scripts/                  various scripts used by JOSM developers
+    - BuildProjectionDefinitions.java
+      called from the ant build file to combine the files epsg and josm-epsg
+      to create the custom-epsg file for distribution
+    - geticons.pl             tool to find all used icons and allows deleting unused icons
+      searches also for images with incompatible svg code
+    - optimize-images         short script to decrease size of PNG images
+    - since_xxx.py            developer tool to replace "@since xxx" in Javadoc by the upcoming revision number
+    - SyncEditorLayerIndex.java
+      script to compare and analyse the differences of the editor layer index and the
+      JOSM imagery list (see https://josm.openstreetmap.de/wiki/ImageryCompare)
+    - TagInfoExtract.java     extracts tag information for the taginfo project
+- src/                      the source code of the application
+- start.html                HTML page to run the applet version of JOSM
+- test/                     automated software tests
+    - data/                 resources used for some tests
+    - functional/           functional tests (source code)
+    - lib/                  libraries needed for (some of) the tests, including JUnit
+    - performance/          performance tests (source code)
+    - unit/                 unit tests (source code)
+- tools/                    libraries, tools and configuration files that help in the development process
+    - checkstyle/           libs and config files for checkstyle (automatically detects code style
+      problems in source code); can be launched as an ant target in build.xml
+    - eclipse/              preconfigured Eclipse configuration files
+    - ivy/                  Apache Ivy binary, configuration file, and downloaded dependencies
+    - jacocoant.jar         used to include coverage data into JUnit test reports
+    - japicc/               used to generate a compatibility report between optimized jar and normal one
+    - netbeans/             preconfigured Netbeans project
+    - pmd/                  config files for PMD (source code analyzer, finds common programming flaws)
+    - spotbugs/             libs and config files for spotbugs (automatically detects common bugs and potential
+      problems in source code); can be launched as an ant target in build.xml
+```
+
+
+### Third party libraries
+
+There are some third party libraries which are directly included in the source code tree, in particular:
+
+* jmapviewer `src/org/openstreetmap/gui` ([svn external](https://josm.openstreetmap.de/osmsvn/applications/viewer/jmapviewer/)) 
+  * Java component to browse a TMS map
+* Apache commons compress ([github](https://github.com/apache/commons-compress))
+  * Support for bzip2 compression when opening files
+* Apache commons validator `src/org/openstreetmap/josm/data/validation/routines` ([apache](http://commons.apache.org/proper/commons-validator))
+  * Improved validator routines 
+* SVG Salamander ([github](https://github.com/blackears/svgSalamander))
+  * Support for SVG image format
+* Metadata Extractor ([github](https://github.com/drewnoakes/metadata-extractor))
+  * Read EXIF Metadata of photos
+* Signpost ([github](https://github.com/mttkay/signpost))
+  * OAuth library
+* MultiSplitPane `src/org/openstreetmap/josm/gui/MultiSplitLayout.java, MultiSplitPane.java` ([github](https://github.com/floscher/multi-split)) ([oracle](https://community.oracle.com/docs/DOC-983539))
+  * Small lib for GUI layout management
+* swinghelper `src/org/openstreetmap/josm/gui/util/CheckThreadViolationRepaintManager.java` ([github](https://github.com/floscher/swinghelper))
+  * Class CheckThreadViolationRepaintManager to find EDT violations
+* xz extractor ([website](https://tukaani.org/xz/java.html))
+* OpeningHoursParser (MIT license) ([github](https://github.com/simonpoole/OpeningHoursParser))
