Update README.md

Co-authored-by: Matthew John Cheetham <[email protected]>

Author: wolf99

README.md

@@ -162,7 +162,7 @@ rm $(command -v git-credential-manager-core)
 
 ### Windows
 
-GCM is included with [Git for Windows][], and the latest version is included in each new Git for Windows release. This is the preferred way to install GCM on Windows. During installation you will be asked to select a credential helper, with GCM being set as the default.
+GCM is included with [Git for Windows][git-for-windows], and the latest version is included in each new Git for Windows release. This is the preferred way to install GCM on Windows. During installation you will be asked to select a credential helper, with GCM being set as the default.
 
 ![image][git-for-windows-screenshot]