Fix error anatomy demo copy

Author: grega

docs/anatomy.html

@@ -79,7 +79,7 @@ <h1>Anatomy of a Friendly Error Message</h1>
               <div class="anatomy__zone-tag">Solve - Suggested fix</div>
             </div>
             <div class="anatomy__zone-body">
-              <pre class="pfem__patch">nme = 0
+              <pre class="pfem__patch">nme = "Jo"
 print("Hello, " + nme)</pre>
             </div>
           </div>