Highlight banner with lines

README.md

@@ -11,8 +11,12 @@ transpile future CSS syntax, inline images, and more.
 PostCSS is used by industry leaders including Wikipedia, Twitter, Alibaba,
 and JetBrains. The [Autoprefixer] and [Stylelint] PostCSS plugins is one of the most popular CSS tools.
 
+---
+
 <img src="https://cdn.evilmartians.com/badges/logo-no-label.svg" alt="" width="22" height="16" />  Made in <b><a href="https://evilmartians.com/?utm_source=postcss&utm_campaign=devtools-button&utm_medium=github">Evil Martians</a></b>, product consulting for <b>developer tools</b>.
 
+---
+
 [Abstract Syntax Tree]: https://en.wikipedia.org/wiki/Abstract_syntax_tree
 [Evil Martians]:        https://evilmartians.com/?utm_source=postcss
 [Autoprefixer]:         https://github.com/postcss/autoprefixer