🔑 github major keys

Some missing keyboard shortcuts for github

When viewing a pull request

• cmd+shift+8 == goto conversation
• cmd+shift+9 == goto commits
• cmd+shift+0 == goto files
• cmd+shift+i == toggle file details

Development

web-ext run --firefox=/Applications/Firefox\ Nightly.app/Contents/MacOS/firefox-bin --browser-console --start-url https://github.com/rails/rails/pull/4