Fix docs lint warning

[ashokdelphia]

Fix pyroma lint warning.

It's complaining about the underline being shorter than the heading:

Before:

$ pyroma .
------------------------------
Checking .
Found pytest-postgresql
------------------------------
Your long_description is not valid ReST: 
<string>:239: (WARNING/2) Title underline too short.

unreleased
-------
------------------------------
Final rating: 9/10
Cottage Cheese
------------------------------

After:

$ pyroma .
------------------------------
Checking .
Found pytest-postgresql
------------------------------
Final rating: 10/10
Your cheese is so fresh most people think it's a cream: Mascarpone
------------------------------

(This seemed too trivial to warrant an issue; please advise if you would like one for completeness.)

[coveralls]

Coverage remained the same at 57.182% when pulling 9018653 on ashokdelphia:fix-pyroma-lint-warning-in-changes into ec4b46b on ClearcodeHQ:master.

[coveralls]

Coverage remained the same at 57.182% when pulling 9018653 on ashokdelphia:fix-pyroma-lint-warning-in-changes into ec4b46b on ClearcodeHQ:master.

[coveralls]

Coverage increased (+0.6%) to 57.766% when pulling b89f024 on ashokdelphia:fix-pyroma-lint-warning-in-changes into ec4b46b on ClearcodeHQ:master.

[fizyk]

Also update .bumpversion.cfg there's an underline that ought to be compatible with this

[fizyk]

Anyway for this underline and due to the bumpversion it's most important if it renders correctly rather than if it has same length

[fizyk]

update bumpversion.cfg as well

[ashokdelphia]

Ouch. Sorry to not see how the bump works. Thanks for pointing that out.

In terms of rendering, a longer line under a version number should still render the same way. I'm somewhat inclined to change all of the version title-lines to be the same length, so they are definitely consistent.