#pendule extension ruler fix

Ruler tool fix for popular web dev chrome chrome extension pendule.

how to:

• navigate to chrome extension on your file system
  • ubuntu: ~/.config/google-chrome/Default/Extensions/gbkffbkamcejhkcaocmkdeiiccpmjfdi/1.0.0_0
  • osx: /Users/{{user}}/Library/Application Support/Google/Chrome/Default/Extensions/gbkffbkamcejhkcaocmkdeiiccpmjfdi/1.0.0_0
• replace content_script_top_frame.js file with one from this repo
• disable/enable pendule