update content design link

Author: abbyLiv

index.html

@@ -134,7 +134,7 @@ <h2 id="user-research">Customer Experience</h2>
             <ul>
               <li><a href="https://research.localgov.digital/">User Research Library</a></li>
               <li><a href="https://docs.google.com/document/d/1OL32guRxt32Z2or1_lcKDg9RPDw4_03fkKPqxnR7bGw/edit">User Research Guidance and templates </a></li>
-              <li><a href=" https://docs.google.com/document/d/1J8I7nBizNA3lV5wmTE0eLjliWGaOsCVwIvHzMbCMg_E/edit">Content Design Guidance</a></li>
+              <li><a href=" https://docs.google.com/document/d/1J8I7nBizNA3lV5wmTE0eLjliWGaOsCVwIvHzMbCMg_E/edit">Content Design Playbook</a></li>
             </ul>
           </div>
         </div>