Some `chalk help configs` output should not be center-aligned

[ee7]

Description

Chalk may output a table with a green title, which is center-aligned.

However, for chalk help configs, there is information under the table titles, which is also center-aligned. I think it should be left-aligned like the other body text.

Impact

Low impact: some text in chalk help configs looks a bit inconsistent and less readable.

Steps to Reproduce

Run chalk help configs with chalk v0.3.1.

Other Information