Docs: adding a favicon

doc/advanced.rst

@@ -626,3 +626,15 @@ This targets SQLAlchemy specifically.
 Unlike the previous setting, this will specifically only affect the behaviour of
 IntegrityErrors. These usually come from violations on constraints in the database,
 for example trying to insert a row with a primary key that already exists.
+
+Adding a favicon to the admin page
+************************************
+Adding a favicon to flask-admin is easy: just save a .ico file and add a /favicon.ico 
+route to your flask app.
+
+    from flask import redirect, url_for
+
+
+    @app.route("/favicon.ico")
+    def favicon():
+        return redirect(url_for("static", filename="favicon.ico"))