help wiki improvement of draw mode > continuous drawing

[HeiKue]

This is the extract and continuation of the German-language discussion #24166 regarding Continuous drawing.
Goal of this ticket is to complete and to improve understandability.
Details should be clarified here before the wiki is changed.

Here my last proposal:
"You can continue drawing an existing way if it's clear to JOSM at which leaf node which way has to be continued.
In ambiguous situations where JOSM cannot clearly recognise the situation, you must select the way and preferably also the leaf node before you enter the draw mode.
In unclear situations when the draw mode is entered, either a new way is started from the one previously selected node or no new way is started at all."