Corrected isort example in coding style docs.
Follow up to
@@ -159,7 +159,7 @@ Imports
.. console::
$ python -m pip install "isort >= 5.1.0"
- $ isort -rc .
+ $ isort .
This runs ``isort`` recursively from your current directory, modifying any
files that don't conform to the guidelines. If you need to have imports out
