- Move some images from qtcreator\images to qtcreatordev\images
- Hide directories from the doc build (these will be added
gradually when we fix the docs for the classes in them)
- Fix broken links
- Add README.md that describes the doc projects in the repo
Fixes: QTCREATORBUG-23544
Change-Id: I4fc29d8fbc8b7a0a0f81fa3261f6412c47b9d84e
Reviewed-by: Eike Ziller <eike.ziller@qt.io>