Add Contributor License and Feedback Agreement page (#209)

Author: beran-t

docs/cla.mdx

@@ -0,0 +1,13 @@
+---
+title: "E2B Contributor License and Feedback Agreement"
+---
+
+Welcome to our Contributor License and Feedback Agreement! Here's a quick breakdown of what's going on:
+
+- You (the contributor) would normally be entering into an agreement with E2B.
+- We deeply appreciate your interest in contributing to our software.
+- Right now, we're still getting everything set up on the legal side to properly accept and manage contributions.
+- Because of that, we're not able to accept outside contributions at this time.
+- Once we're ready, we'll update this agreement and open things up for contributions.
+
+In short, we're excited that you want to contribute — we're just not quite ready yet.