Update README.md

Author: argzdev

README.md

@@ -74,7 +74,7 @@ openupm add com.google.external-dependency-manager
 
 ### Install via git URL
 1. Open Package Manager
-2. Click on the + icon on the top left corner of the "Package Manager" scren
+2. Click on the + icon on the top left corner of the "Package Manager" screen
 3. Click on "Install package from git url..."
 4. Paste: https://github.com/googlesamples/unity-jar-resolver.git?path=upm