Update news.json

assets/javascripts/news.json

@@ -1,7 +1,7 @@
 [
   [
     "2020-12-07",
-    "New documentation: <a href=\"/groovy/\">Groovy</a>"
+    "New documentations: <a href=\"/flask/\">Flask</a>, <a href=\"/groovy/\">Groovy</a>, <a href=\"/jinja/\">Jinja</a>, <a href=\"/werkzeug/\">Werkzeug</a>"
   ],
   [
     "2020-12-04",