documentation

Pull request #1176: Feature/update module tutorial 7.0 D: Updated module tutorial & ZIP files.

Merge in WEB/documentation from feature/update-module-tutorial-7.0-D to release/7.0

* commit 'cb8f91ddc9860832554749f39038adc81e3c2ba1':
  Refined wording
  Updated images
  Fixed backticks referencing manifest.json elements
  Multiple language-related and formatting improvements
  fixed Hello world message position in hello_world_css widget; fixed code listing for demo gauge widget
  repacked example module archives
  formatting fix
  fixed numeration
  Repacked MyAddress module files; fixed code and code examples formatting
  updated screenshot width
  setting custom screenshot width
  updating screenshots
  Updated MyAddress.zip
  updated finished screenshot and some instructions
  Removed last step (no longer needed)
  steps for a nested menu