Added Tables of Contents for CONTRIBUTING.md and CODE_OF_CONDUCT.md (#2824)

CODE_OF_CONDUCT.md

@@ -1,5 +1,17 @@
 # Contributor Covenant Code of Conduct
 
+- [Our Pledge](#our-pledge)
+- [Our Standards](#our-standards)
+- [Enforcement Responsibilities](#enforcement-responsibilities)
+- [Scope](#scope)
+- [Enforcement](#enforcement)
+- [Enforcement Guidelines](#enforcement-guidelines)
+  - [1. Correction](#1-correction)
+  - [2. Warning](#2-warning)
+  - [3. Temporary Ban](#3-temporary-ban)
+  - [4. Permanent Ban](#4-permanent-ban)
+- [Attribution](#attribution)
+
 ## Our Pledge
 
 We as members, contributors, and leaders pledge to make participation in our