Adds contributors section to README

Rule is if you've:
1. Contributed code to the core framework
2. Contributed an example
3. Contributed a design review/API review/docs review
you count.

README.md

@@ -78,3 +78,9 @@ If you want to avoid self-hosting the above solutions we're building Burr Cloud.
 # Contributing
 
 We welcome contributors! To get started on developing, see the [developer-facing docs](https://burr.dagworks.io/contributing).
+
+## Contributors
+- [Elijah ben Izzy](https://github.com/elijahbenizzy)
+- [Stefan Krawczyk](https://github.com/skrawcz)
+- [Joseph Booth](https://github.com/jombooth)
+- [Thierry Jean](https://github.com/zilto)