Adjust wording

Author: jhamon

docs/upgrading.md

@@ -25,7 +25,7 @@ New Features:
 Other improvements:
 - ~70% faster client instantiation time thanks to extensive refactoring to implement lazy loading. This means your app won't waste time loading code for features you're not using.
 - Retries with exponential backoff are now enabled by default for REST calls (implemented for both urllib3 and aiohttp).
-- We're following [PEP 561](https://typing.python.org/en/latest/spec/distributing.html#packaging-typed-libraries) adding a `py.typed` marker file to indicate inline type information is present in the package. We're still working toward reaching full coverage with our type hints, but including this file allows some tools to find the inline definitions we have already implemented.
+- We're following [PEP 561](https://typing.python.org/en/latest/spec/distributing.html#packaging-typed-libraries) and adding a `py.typed` marker file to indicate inline type information is present in the package. We're still working toward reaching full coverage with our type hints, but including this file allows some tools to find the inline definitions we have already implemented.
 
 
 ### Backups for Serverless Indexes