From http://www.sphinx-doc.org/en/stable/domains.html#directive-option:
> The directive will create cross-reference targets for the given options,
> referencable by option (in the example case, you’d use something like
> :option:`dest_dir`, :option:`-m`, or :option:`--module`).
I don't think we're intending here to create cross references,
we simply want to render it nicely.
So just use code formatting instead.
This gets rid of the last build warnings.
Renames the virtual environment name from venv to my_project so that the reader is clear that they should not name their environment venv which could lead to confusion later (venv appearing on the left of the prompt)
As per [their blog post of the 27th April](https://blog.readthedocs.com/securing-subdomains/) ‘Securing subdomains’:
> Starting today, Read the Docs will start hosting projects from subdomains on the domain readthedocs.io, instead of on readthedocs.org. This change addresses some security concerns around site cookies while hosting user generated data on the same domain as our dashboard.
Test Plan: Manually visited all the links I’ve modified.
Abhishek Kumar Singh