Update rules/Proj0036.md

Author: Corniel

rules/Proj0036.md

@@ -5,7 +5,7 @@ ancestor: MSBuild
 
 # Proj0036: ?
 A `<None>` project item can be used to represent a file that should have no
-role in the build process. Hence removing it after it has been added, for
+role in the build process. Hence, removing it after it has been added, for
 instance because its type has been changed to `<Content>` or `<EmbeddedResource>`
 will have zero output on either the build process, nor how the file is
 displayed in the IDE.