Fix typo in docs (#4261)

docs/deploying/uwsgi.rst

@@ -37,7 +37,7 @@ If your application is accessible at root level, you can use a
 single ``/`` instead of ``/yourapplication``. ``myapp`` refers to the name of
 the file of your flask application (without extension) or the module which
 provides ``app``. ``app`` is the callable inside of your application (usually
-the line reads ``app = Flask(__name__)``.
+the line reads ``app = Flask(__name__)``).
 
 If you want to deploy your flask application inside of a virtual environment,
 you need to also add ``--virtualenv /path/to/virtual/environment``. You might