Adds a help-page to the twitter feature
Adds a help page for my experiment
Moves twitter and my experiment help pages into the same category:
Social
Removes the extension org.eclipse.help.toc from com.winterwell.jtwitter
since neither tox.xml nor any help page exists in that plug-in
Adds a line that the twitter-feature isn't included in the social
feature and outcomment the Twitter help topic
Merge pull request #1 from KlasJoenssson/Bug3343

Adds help pages