Fix cheatsheets header styles

Cheatsheet.cheatmd

@@ -47,6 +47,10 @@ Paragraphs are visually distinct from one another.
 | `%A, %B %e, %Y` | `Sunday, June 5, 2013` |
 | `%b %e %a`      | `Jun 5 Sun`            |
 
+### [Link](`mix docs`)
+
+Header with links in it.
+
 ## Variants
 {: .col-2}
 

assets/css/content/cheatsheet.css

@@ -36,17 +36,10 @@
 /* h3 */
 
 .page-cheatmd .content-inner h3 {
-  color: var(--main);
-  text-decoration-color: var(--main);
   margin: 0 0 1em;
   font-weight: 400;
 }
 
-.page-cheatmd .content-inner h3 :is(a, a:visited) {
-  color: var(--main);
-  text-decoration-color: var(--main);
-}
-
 .page-cheatmd .content-inner section.h3 {
   min-width: 300px;
   margin: 0;