Editor - Add link

Author: trungvose

frontend/src/app/project/config/editor.ts

@@ -5,6 +5,7 @@ export const quillConfiguration = {
     [{ list: 'ordered' }, { list: 'bullet' }],
     [{ header: [1, 2, 3, 4, 5, 6, false] }],
     [{ color: [] }, { background: [] }],
+    ['link'],
     ['clean']
   ]
 };