Update instructions for creating gh-pages branch
Adding extra icons (ga & snapshot) to download & docs widgets
Removing zip option from download widget

[Finished #55963742]
reposition maven|gradle switcher [#56070698]
Add syntax highlighting
Move fork ribbon down 2px for better alignment
Merge pull request #1 from philwebb/tweaks

A couple of minor tweaks
Merge remote-tracking branch 'gh-pages-upstream/gh-pages' into gh-pages