Fixed a link in the menu (Use identical compar...)

Author: bkosun

README.md

@@ -15,7 +15,7 @@
      * [Don't add unneeded context](#dont-add-unneeded-context)
      * [Use default arguments instead of short circuiting or conditionals](#use-default-arguments-instead-of-short-circuiting-or-conditionals)
   3. [Comparison](#comparison)
-     * [Use identical comparison](#identical_comparison)
+     * [Use identical comparison](#use-identical-comparison)
   4. [Functions](#functions)
      * [Function arguments (2 or fewer ideally)](#function-arguments-2-or-fewer-ideally)
      * [Functions should do one thing](#functions-should-do-one-thing)