Add docker runner docs

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: -0.14 :warning:

Comparison is base (904626e) 73.41% compared to head (b5f8bf5) 73.28%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #374 +/- ## ========================================== - Coverage 73.41% 73.28% -0.14% ========================================== Files 123 124 +1 Lines 4270 4278 +8 Branches 526 527 +1 ========================================== Hits 3135 3135 - Misses 999 1007 +8 Partials 136 136 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `73.25% <0.00%> (-0.14%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wooey#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://app.codecov.io/gh/wooey/Wooey/pull/374?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wooey) | Coverage Δ | | |---|---|---| | [wooey/tests/scripts/docker-script.py](https://app.codecov.io/gh/wooey/Wooey/pull/374?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=wooey#diff-d29vZXkvdGVzdHMvc2NyaXB0cy9kb2NrZXItc2NyaXB0LnB5) | `0.00% <0.00%> (ø)` | |

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