Fix a typo error in explanatory notes
This patch changes " running nigthly"
to " running nightly" at the 137 line
in cinder/doc/source/contributor/gerrit.rst
Closes-Bug:
@@ -134,7 +134,7 @@ CI job runs may result in false negatives for a considerable number of causes:
- Network failures.
- Not enough resources on the job runner.
-- Storage timeouts caused by the array running nigthly maintenance jobs.
+- Storage timeouts caused by the array running nightly maintenance jobs.
- External service failure: pypi, package repositories, etc.
- Non cinder components spurious bugs.
