footnote. Fix a config override bug

src/SearchGPTService.py

@@ -27,7 +27,7 @@ def overide_config_by_query_string(self, ui_overriden_config):
         if ui_overriden_config is None:
             return
         for key, value in ui_overriden_config.items():
-            if value is not None:
+            if value is not None and value != '':
                 # query_string is flattened (one level) while config.yaml is nested (two+ levels)
                 # Any better way to handle this?
                 if key == 'bing_search_subscription_key':

src/website/templates/base.html

@@ -26,6 +26,18 @@
 </nav>
 <div class="container">{% block content %} {% endblock %}</div>
 
+<footer class="bg-light p-3">
+    <div class="container text-center">
+        <div class="row">
+            <div class="col-lg-12">
+                <p class="text-muted small mb-0">SearchGPT 20230305 Version (
+                    <a href="https://github.com/michaelthwan/searchGPT">Github</a>
+                    ). Your feedback will help us to improve</p>
+            </div>
+        </div>
+    </div>
+</footer>
+
 <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
 <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-w76AqPfDkMBDXo30jS1Sgez6pr3x5MlQ1ZAGC+nuZB+EYdgRZgiwxhTBTkF7CXvN" crossorigin="anonymous"></script>

src/website/templates/index.html

@@ -112,4 +112,5 @@ <h4 class="mb-1" style="font-family: 'Playfair Display', Georgia">{{item['title'
     <hr>
 </div>
 
+
 {% endblock %}