Project proposal: lint rst single vs double backticks

There isnt any clear guidance on single vs double backticks in RST, especially when RST is not embedded within Python, however a rule of thumb is that single backticks should be implicit references to something.

https://stackoverflow.com/questions/22256995/restructuredtext-in-sphinx-and-docstrings-single-vs-double-back-quotes-or-back
https://mail.zope.org/pipermail/grok-dev/2008-December/006823.html

For documentation especially, it would be helpful to have a checker that finds a section heading somewhere in the docs for anything in single backticks, and errors if it cant be found.

https://github.com/myint/rstcheck would likely be the best spot for this to be implemented.

And https://github.com/myint/rstcheck/issues/32 would be an ideal task to be done to familiarise oneself with the project.