Update doc_rules/elvis_style/atom_naming_convention.md

Co-authored-by: Paulo F. Oliveira <[email protected]>

doc_rules/elvis_style/atom_naming_convention.md

@@ -2,8 +2,8 @@
 
 (since [1.0.0](https://github.com/inaka/elvis_core/releases/tag/1.0.0))
 
-All atoms should be named according to the regular expression provided.
-Except if it matches with a defined `forbidden_regex`.
+All atoms should be named according to the provided regular expression,
+except if they match with a defined `forbidden_regex`.
 Atoms enclosed in apostrophes have special meaning and are thus handled
 by a different configuration option (use `same` if you want the same value as `regex`).
 To define forbidden enclosed atoms (like the ones in `forbidden_regex` apply for `regex`),