Merge pull request #374 from mairaw/patch-1

fix heading to be H1

Author: sharwell

spec/overload-resolution.md

@@ -1,4 +1,4 @@
-### Overloaded Method Resolution
+# Overloaded Method Resolution
 
 In practice, the rules for determining overload resolution are intended to find the overload that is "closest" to the actual arguments supplied. If there is a method whose parameter types match the argument types, then that method is obviously the closest. Barring that, one method is closer than another if all of its parameter types are narrower than (or the same as) the parameter types of the other method. If neither method's parameters are narrower than the other, then there is no way for to determine which method is closer to the arguments.
 
@@ -263,7 +263,7 @@ Given a method group, the most applicable method in the group for an argument li
 
     76. If `M` is not an extension method and `N` is, eliminate `N` from the set.
 
-    77. If `M` and `N` are extension methods and `M` was found before `N` (Section [Extension Method Collection](overload-resolution.md#extension-method-collection)), eliminate `N` from the set. For example:
+    77. If `M` and `N` are extension methods and `M` was found before `N` (Section [Extension Method Collection](expressions.md#extension-method-collection)), eliminate `N` from the set. For example:
 
         ```vb
         Imports System.Runtime.CompilerServices