update readme: local dev how to run test
@@ -100,6 +100,9 @@ behavior, since there are problems with circleci's tty, so we run
pexpect-related tests on travis, and run unittest/black style check/flake8 check
on circleci.
+For local development, you just run `pytest`, if all tests passed locally, it
+shall be passed on CI.
+
### Command Reference
There is a full Redis command list in [commands.csv](docs/commands.csv) file, downloaded by:
