Update enum-naming.md

Author: ahass

csharp/enum-naming.md

@@ -1,4 +1,4 @@
-# C# Naming Convention > Enum Naming
+# C# Naming Convention > Constant Naming
 
 ## PascalCase
 - Begin with an uppercase letter
@@ -9,4 +9,4 @@
 
 ```c#
 private const int StudentCount = 42;
-```
+```