chore: add more context around experimental features (#421)

Author: bpmct

claude-code/README.md

@@ -34,9 +34,11 @@ The `codercom/oss-dogfood:latest` container image can be used for testing on con
 
 ### Run in the background and report tasks (Experimental)
 
-> This functionality is in early access and subject to change. Do not run in
-> production as it is unstable. Instead, deploy these changes into a demo or
-> staging environment.
+> This functionality is in early access as of Coder v2.21 and is subject to change.
+> Do not run in production as it is unstable.
+> Instead, deploy these changes into a demo or staging environment.
+>
+> Learn more in [the Coder documentation](https://coder.com/docs/tutorials/ai-agents)
 >
 > Join our [Discord channel](https://discord.gg/coder) or
 > [contact us](https://coder.com/contact) to get help or share feedback.

goose/README.md

@@ -35,9 +35,11 @@ Your workspace must have `screen` installed to use this.
 
 ### Run in the background and report tasks (Experimental)
 
-> This functionality is in early access and subject to change. Do not run in
-> production as it is unstable. Instead, deploy these changes into a demo or
-> staging environment.
+> This functionality is in early access as of Coder v2.21 and is subject to change.
+> Do not run in production as it is unstable.
+> Instead, deploy these changes into a demo or staging environment.
+>
+> Learn more in [the Coder documentation](https://coder.com/docs/tutorials/ai-agents)
 >
 > Join our [Discord channel](https://discord.gg/coder) or
 > [contact us](https://coder.com/contact) to get help or share feedback.