Tweak

Author: javiereguiluz

doctrine/dbal.rst

@@ -35,7 +35,7 @@ Then configure the ``DATABASE_URL`` environment variable in ``.env``:
     # .env (or override DATABASE_URL in .env.local to avoid committing your changes)
 
     # customize this line!
-    DATABASE_URL=mysql://db_user:db_password@127.0.0.1:3306/db_name?serverVersion=5.7
+    DATABASE_URL="mysql://db_user:db_password@127.0.0.1:3306/db_name?serverVersion=5.7"
 
 Further things can be configured in ``config/packages/doctrine.yaml`` - see
 :ref:`reference-dbal-configuration`. Remove the ``orm`` key in that file