docs: rst format fixes

[zramsay]

No description provided.

[odeke-em]

For posterity, on Github one can't tell the difference between them visually

Before

After

But as @zramsay has shown me offline, the difference is yuuuge on readthedocs

Before

Thank you @zramsay, LGTM!

[codecov]

Codecov Report

Merging #304 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #304   +/-   ##
========================================
  Coverage    24.91%   24.91%           
========================================
  Files           11       11           
  Lines          578      578           
========================================
  Hits           144      144           
  Misses         410      410           
  Partials        24       24

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