Migrate to syntax-tree

Author: wooorm

package.json

@@ -9,8 +9,8 @@
     "range",
     "mdast"
   ],
-  "repository": "https://github.com/wooorm/mdast-util-heading-range",
-  "bugs": "https://github.com/wooorm/mdast-util-heading-range/issues",
+  "repository": "https://github.com/syntax-tree/mdast-util-heading-range",
+  "bugs": "https://github.com/syntax-tree/mdast-util-heading-range/issues",
   "author": "Titus Wormer <[email protected]> (http://wooorm.com)",
   "contributors": [
     "Titus Wormer <[email protected]> (http://wooorm.com)"

readme.md

@@ -91,13 +91,13 @@ Callback invoked when a range is found.
 
 <!-- Definitions -->
 
-[build-badge]: https://img.shields.io/travis/wooorm/mdast-util-heading-range.svg
+[build-badge]: https://img.shields.io/travis/syntax-tree/mdast-util-heading-range.svg
 
-[build-status]: https://travis-ci.org/wooorm/mdast-util-heading-range
+[build-status]: https://travis-ci.org/syntax-tree/mdast-util-heading-range
 
-[coverage-badge]: https://img.shields.io/codecov/c/github/wooorm/mdast-util-heading-range.svg
+[coverage-badge]: https://img.shields.io/codecov/c/github/syntax-tree/mdast-util-heading-range.svg
 
-[coverage-status]: https://codecov.io/github/wooorm/mdast-util-heading-range
+[coverage-status]: https://codecov.io/github/syntax-tree/mdast-util-heading-range
 
 [chat-badge]: https://img.shields.io/gitter/room/wooorm/remark.svg
 
@@ -109,8 +109,8 @@ Callback invoked when a range is found.
 
 [npm]: https://docs.npmjs.com/cli/install
 
-[mdast]: https://github.com/wooorm/mdast
+[mdast]: https://github.com/syntax-tree/mdast
 
-[node]: https://github.com/wooorm/mdast#node
+[node]: https://github.com/syntax-tree/unist#node
 
 [onrun]: #function-onrunstart-nodes-end-scope