Add web interface link to Contributing docs (#59980)

* Add UI info in 15 minutes guide

* fixing space

Author: Prab-27

contributing-docs/03a_contributors_quick_start_beginners.rst

@@ -87,8 +87,8 @@ Option A – Breeze on Your Laptop
 
 The command starts a shell and launches multiple terminals using tmux
 and launches all Airflow necessary components in those terminals. To know more about tmux commands,
-check out this cheat sheet: https://tmuxcheatsheet.com/. To exit breeze, type ``stop_airflow`` in any
-of the tmux panes and hit Enter.
+check out this cheat sheet: https://tmuxcheatsheet.com/. Now You can also access Airflow UI on your local machine at |http://localhost:28080| with user name ``admin`` and password ``admin``. To exit breeze, type ``stop_airflow`` in any
+of the tmux panes and hit Enter
 
 **Working with DAGs in Breeze:**