added in flash messages for submitting project

templates/add_project.html

@@ -21,6 +21,15 @@
     </nav>
     <h2>Add Project</h2>
     <form method="POST" action="{{ url_for('add_project') }}">
+        {% with messages = get_flashed_messages() %}
+            {% if messages %}
+                <ul class="messages">
+                    {% for message in messages %}
+                        <li>{{ message }}</li>
+                    {% endfor %}
+                </ul>
+            {% endif %}
+        {% endwith %}
         {% if form %}
             {{ form.csrf_token }}
             <div class="form-group">