Turn "Stylistic sets" into a heading

This makes it possible to link to this using `#stylistic-sets`
2019-11-13 10:23:33 +01:00 · 2019-11-13 10:23:33 +01:00 · fd43cfe61d
commit fd43cfe61d
--- a/README.md
+++ b/README.md
@ -54,7 +54,7 @@ Swift:

 <img src="./showcases/swift.png">

-Stylistic sets:
+### Stylistic sets

 See [How to enable](https://github.com/tonsky/FiraCode/wiki/How-to-enable-stylistic-sets)