Fix suggested mistaked (revised) (#461)

* Fix suggested mistakes

Based on script of @EdwardBetts here:
https://github.com/lucasdemarchi/codespell/issues/435

* corrected revision and added 2 more

OP hasn't responded to previous requests to fix PR #437 therefore I intervened and resubmit. Since we support both british and english mispellings when we encounter them.

* re-added shrinked->shrunk

* 1 more fix for the dictionary

commend/s is actually a legit word. But it also may be a typo so i kept it.