Bump remark-lint-no-multiple-toplevel-headings from 1.0.5 to 2.0.0 (#74)

Bumps [remark-lint-no-multiple-toplevel-headings](https://github.com/remarkjs/remark-lint) from 1.0.5 to 2.0.0.
- [Release notes](https://github.com/remarkjs/remark-lint/releases)
- [Changelog](https://github.com/remarkjs/remark-lint/blob/2.0.0/history.md)
- [Commits](https://github.com/remarkjs/remark-lint/commits/2.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -46,7 +46,7 @@
     "remark-lint-no-file-name-outer-dashes": "^1.0.5",
     "remark-lint-no-heading-indent": "^1.0.4",
     "remark-lint-no-literal-urls": "^1.0.4",
-    "remark-lint-no-multiple-toplevel-headings": "^1.0.4",
+    "remark-lint-no-multiple-toplevel-headings": "^2.0.0",
     "remark-lint-no-shell-dollars": "^1.0.3",
     "remark-lint-no-table-indentation": "^1.0.5",
     "remark-lint-no-tabs": "^1.0.4",