Update README.md

Author: usercode

README.md

@@ -3,7 +3,7 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg?style=flat-square)](https://opensource.org/licenses/MIT)
 [![NuGet](https://img.shields.io/nuget/v/AsyncKeyLock.Core.svg?style=flat-square)](https://www.nuget.org/packages/AsyncKeyLock/)
 
-## Async Key-based ReaderWriterLock with cancellation support
+## Async Key-based Reader Writer Lock with Cancellation Support
 
 ## How to use it