Add codespell: config, pre-commit, workflow + 1 typo fixed

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (0916305) 88.79% compared to head (b0aa175) 88.79%. Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #544 +/- ## ======================================= Coverage 88.79% 88.79% ======================================= Files 11 11 Lines 1035 1035 ======================================= Hits 919 919 Misses 116 116 ``` | [Files Changed](https://app.codecov.io/gh/ReproNim/neurodocker/pull/544?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ReproNim) | Coverage Δ | | |---|---|---| | [neurodocker/reproenv/renderers.py](https://app.codecov.io/gh/ReproNim/neurodocker/pull/544?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ReproNim#diff-bmV1cm9kb2NrZXIvcmVwcm9lbnYvcmVuZGVyZXJzLnB5) | `93.20% <ø> (ø)` | |

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