docs: add callout for eoAPI usage discussion

Author: alukach

README.md

@@ -5,6 +5,11 @@
 
 ---
 
+> [!IMPORTANT] 
+> **We would :heart: to hear from you!**
+> Please [join the discussion](https://github.com/developmentseed/eoAPI/discussions/209) and let us know how you're using eoAPI! This helps us improve the project for you and others.
+> If you prefer to remain anonymous, you can email us at [email protected], and we'll be happy to post a summary on your behalf.
+
 STAC Auth Proxy is a proxy API that mediates between the client and your internally accessible STAC API to provide flexible authentication, authorization, and content-filtering mechanisms.
 
 ## ✨Features✨