Add CLI examples for runners

These make the docs look better.
modjk.recover_all: rename local var to not shadow workers() func
modjk: fix docstring typos: spepcific => specific
not fixable without changing public API
Merge pull request #7282 from hulu/modjk-typos

modjk: fix docstring typos: spepcific => specific
Merge pull request #7281 from hulu/modjk-workers-shadow

modjk.recover_all: rename local var to not shadow workers() func
Merge pull request #7275 from terminalmage/docs

Add CLI examples for runners
Merge branch 'develop' into with-pylint-pragmas