Update index.html with code of conduct

index.html

@@ -171,6 +171,13 @@ <h2>Sign Up!</h2>
  </ul>
  </form>
  </div>
+ <header>
+ <h3>Code of Conduct</h3>
+ <p>
+ We want this meeting to be as inclusive as possible to everyone involved! Please be aware that we have adopted the <a href="https://github.com/apontzen/london_cc/blob/master/codeofconduct.md">London Code of Conduct</a>. 
+ </p>
+ </header>
+
  <header>
  <h3>Local organizing committee:</h3>
  <p>Ericka Florio, Juliana Kwan, Yoann Launay, James Parke (CTC group secretary),<br>