message: Fix typo in installation.rst
  `superser runserver` should be `superset runserver`
diff: @@ -163,7 +163,7 @@ Refer to the
  for more information.
  Note that *gunicorn* does not
  -work on Windows so the `superser runserver` command is not expected to work
  +work on Windows so the `superset runserver` command is not expected to work
  in that context. Also note that the development web
  server (`superset runserver -d`) is not intended for production use.
  