Fix typo in readme

README.rst

@@ -124,7 +124,7 @@ a test name, and insert into it some code. The tests will run pylint
 against these modules. If the idea is that no messages now occur, then
 that is fine, just check to see if it works by running ``scripts/test.sh``.
 
-You can pass any pytest commaned line argument to ``scripts/test.sh``.
+You can pass any pytest command line argument to ``scripts/test.sh``.
 For example if you want to debug the tests you can execute ``scripts/test.sh --capture=no``.
 
 Ideally, add some pylint error suppression messages to the file to prevent