update readme (#3)

Author: mekhlakapoor

README.md

@@ -15,4 +15,4 @@ REST service to connect to Smartsheet and return information.
 - The client code is autogenerated using an openapi generator.
 - On a push to main, a python library will be built and published to PyPI.
 - The client can then be pip installed as `pip install aind-smartsheet-service-client`
-- An async client can be pip installed as `pip install aind-smartsheet-service-async-client`
+- The async client can be pip installed as `pip install aind-smartsheet-service-async-client`