Fixes a typo

Author: viborc

src/credits.md

@@ -17,7 +17,7 @@ Designed to give users a chance to explore and experience GPT Engineer's feature
 ## Legacy plans
 Some early access users are "grandfathered" on their existing plans, but can choose to move to the new plans before the old ("pro") plan is officially deprecated.
 
-## Availabe plans
+## Available plans
 For more information on subscription options, visit our [subscription page](https://gptengineer.app/settings/plans).
 
 As of 2024-11-11 the Starter plan monthly messaging limit enables 100 edits across user projects.