Chrome extension

[Igmat]

There are few missing features in github that could improve workflow of developers using baset.
Since some of them are in progress pretty long time and others are baset-specific - it`s a good idea to create extension for google chrome that will fulfill this gap.

Features

1. Show inline base64 images in .md files (use of base64 images github/markup#270);
2. Show diff for .md files in preview mode;
3. Show number of changed baselines for PRs.