Change master in links to HEAD

Author: wooorm

readme.md

@@ -202,13 +202,13 @@ abide by its terms.
 
 [author]: https://wooorm.com
 
-[contributing]: https://github.com/syntax-tree/.github/blob/master/contributing.md
+[contributing]: https://github.com/syntax-tree/.github/blob/HEAD/contributing.md
 
-[support]: https://github.com/syntax-tree/.github/blob/master/support.md
+[support]: https://github.com/syntax-tree/.github/blob/HEAD/support.md
 
-[coc]: https://github.com/syntax-tree/.github/blob/master/code-of-conduct.md
+[coc]: https://github.com/syntax-tree/.github/blob/HEAD/code-of-conduct.md
 
-[ast]: https://github.com/inikulin/parse5/blob/master/packages/parse5/docs/tree-adapter/default/interface-list.md
+[ast]: https://github.com/inikulin/parse5/blob/HEAD/packages/parse5/docs/tree-adapter/default/interface-list.md
 
 [vfile]: https://github.com/vfile/vfile
 

types/index.d.ts

@@ -40,7 +40,7 @@ declare namespace hastUtilFromParse5 {
 }
 
 /**
- * Transform [Parse5’s AST](https://github.com/inikulin/parse5/blob/master/packages/parse5/docs/tree-adapter/default/interface-list.md)
+ * Transform [Parse5’s AST](https://github.com/inikulin/parse5/blob/HEAD/packages/parse5/docs/tree-adapter/default/interface-list.md)
  * to a [**hast**](https://github.com/syntax-tree/hast)
  * [*tree*](https://github.com/syntax-tree/unist#tree).
  *