Update README.md for better readability [ci skip]

[xxczaki]

I think it is looking a bit better now 😄

[coveralls]

Coverage increased (+0.05%) to 90.014% when pulling cf33b7e on xxczaki:master into 33db6b1 on mochajs:master.

[Bamieh]

@xxczaki haha wow, i've just made the same update on a separate PR.

[Bamieh]

LGTM

[boneskull]

yeah, we also need to update the "plea for help", it's been up awhile.