Remove an extra quote.

templates/integrations/add_zulip.html

@@ -170,7 +170,7 @@
                 {% if form.to.errors %}
                     {{ form.to.errors|join:"" }}
                 {% else %}
-                    Example: "{% if form.mtype.value == "private" %}[email protected]{% else %}general{% endif%}""
+                    Example: "{% if form.mtype.value == "private" %}[email protected]{% else %}general{% endif%}"
                 {% endif %}
                 </div>
             </div>