Recent changes reviewed; installation details for Linux improved. (#1754)

* Recent changes reviewed; installation details for Linux improved.

* CHECK added.

plugins/org.yakindu.sct.doc.user/src/user-guide/statechart_language.textile

@@ -126,6 +126,8 @@ YAKINDU Statechart Tools Professional Edition allows for additional domains to b
 * C
 * TypeScript
 
+###. CHECK: Does YAKINDU Statechart Tools Professional Edition provide domains for C and TypeScript, or should the list be extended?
+
 ==</div>==