Added a bunch of different recipes

[workgroups2](https://github.com/pashinin/workgroups2) - A session manager for emacs
[json-mode](https://github.com/joshwnj/json-mode) - A major mode for editing JSON files
[inf-mongo](https://github.com/tobiassvn/inf-mongo) - Run a MongoDB shell process in a buffer.
[json-snatcher](https://github.com/Sterlingg/json-snatcher) - An emacs extension to quickly extract path to a value in JSON files
[tiny](https://github.com/abo-abo/tiny) - Quickly generate linear ranges in Emacs