Update README.md

Author: anthonyjgrove

README.md

@@ -10,7 +10,7 @@ and offers both synchronous and asynchronous clients powered by [httpx](https://
 
 ## Documentation
 
-The REST API documentation can be found [on docs.promptfoundry.ai](https://docs.promptfoundry.ai). The full API of this library can be found in [api.md](api.md).
+The REST API documentation can be found on [docs.promptfoundry.ai](https://docs.promptfoundry.ai). The full API of this library can be found in [api.md](api.md).
 
 ## Installation