Update README.md

Thanks for the update, and using Slate!

added mozilla's recroom

Slate 1.1

Changing the code font-family to prefer Menlo/Consolas over Monaco

Changing the code-font font-family to prefer Menlo and Consolas over Monaco, and adding more back-up fonts.

Adding appium docs to examples

Spotted by @moizjv, thanks!

Version 1.0

Fix scrolling bugs, history bugs, and add search minimum score to display