Fix permalink generator type to return void instead of string (#115)

CHANGELOG.md

@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [8.6.3] - 2021-05-05
+* Fix permalink generator type to return `void` instead of `string`. ([#115])
+
 ## [8.6.2] - 2021-04-08
 * Fix types to reflect optional permalink arguments and properties. ([#114])
 
@@ -224,7 +227,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [1.0.0] - 2015-03-18
 * Initial release.
 
-[Unreleased]: https://github.com/valeriangalliat/markdown-it-anchor/compare/v8.6.2...HEAD
+[Unreleased]: https://github.com/valeriangalliat/markdown-it-anchor/compare/v8.6.3...HEAD
+[8.6.3]: https://github.com/valeriangalliat/markdown-it-anchor/compare/v8.6.2...v8.6.3
 [8.6.2]: https://github.com/valeriangalliat/markdown-it-anchor/compare/v8.6.1...v8.6.2
 [8.6.1]: https://github.com/valeriangalliat/markdown-it-anchor/compare/v8.6.0...v8.6.1
 [8.6.0]: https://github.com/valeriangalliat/markdown-it-anchor/compare/v8.5.0...v8.6.0
@@ -328,5 +332,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 [#110]: https://github.com/valeriangalliat/markdown-it-anchor/issues/110
 [#112]: https://github.com/valeriangalliat/markdown-it-anchor/issues/112
 [#114]: https://github.com/valeriangalliat/markdown-it-anchor/pull/114
+[#115]: https://github.com/valeriangalliat/markdown-it-anchor/issues/115
 
 [`6fcc502`]: https://github.com/valeriangalliat/markdown-it-anchor/commit/6fcc50233d593458aa883e5b515cb8311114555c

types/index.d.ts

@@ -36,7 +36,7 @@ declare namespace anchor {
     placement?: 'before' | 'after'
   }
 
-  export type PermalinkGenerator = (slug: string, opts: PermalinkOptions, state: State, index: number) => string;
+  export type PermalinkGenerator = (slug: string, opts: PermalinkOptions, state: State, index: number) => void;
 
   export interface AnchorInfo {
     slug: string;