docs(readme): add releases link

README.md

@@ -115,6 +115,7 @@ Learn more about [agents](https://opencode.ai/docs/agents).
 ### Documentation
 
 For more info on how to configure OpenCode, [**head over to our docs**](https://opencode.ai/docs).
+For release updates, see [GitHub releases](https://github.com/anomalyco/opencode/releases).
 
 ### Contributing