Adjusting the setup section of the tooling guide and the index page for tooling
Adding some of the third tooling section
Pass through HTML entities
Adding the final section of tooling section
Merge branch 'master' of github.com:google/WebFundamentals

* 'master' of github.com:google/WebFundamentals:
  Pass through HTML entities
  added notes about short links, no content was changed.
  Fixed title case, added line breaks, added collection, updated updated_on, minor image updates.
  Added line breaks, changed image to separate screen shots and better layout for images.
Update available langs
Fixing the hebrew translation for the build
Revert "Fixing the hebrew translation for the build"

This reverts commit a1c50a894e54ebe4d775a18bbddf4f99e6291f83.
Fixing hebrew
Merge branch 'master' of github.com:google/WebFundamentals
Fixing hebrew translation