.rst: Auto-Fix Option?

[ax3l]

Hi,

since the detection for the groups:

- id: rst-backticks
- id: rst-directive-colons
- id: rst-inline-touching-normal

is really precise, is it possible to add an option to auto-fix the found locations? :)

[asottile]

pygrep only does matching, replacement is out of scope for the intent of this repository

it is certainly possible to autofix in a limited subset of the detected scenarios -- but some of them are ambiguous and would require a human to decide the correct way forward based on context