docs: update sass loader links (#7664)

Author: evenstensberg

src/content/api/loaders.mdx

@@ -224,7 +224,7 @@ addDependency(file: string)
 dependency(file: string) // shortcut
 ```
 
-Add an existing file as a dependency of the loader result in order to make them watchable. For example, [`sass-loader`](https://github.com/webpack-contrib/sass-loader), [`less-loader`](https://github.com/webpack-contrib/less-loader) uses this to recompile whenever any imported `css` file changes.
+Add an existing file as a dependency of the loader result in order to make them watchable. For example, [`sass-loader`](https://github.com/webpack/sass-loader), [`less-loader`](https://github.com/webpack-contrib/less-loader) uses this to recompile whenever any imported `css` file changes.
 
 ### this.addMissingDependency
 

src/content/awesome-webpack.mdx

@@ -73,7 +73,7 @@ _People passionate about Webpack (In no particular order)_
 - [Style Loader](https://github.com/webpack/style-loader): Style loader module for Webpack. -- _Maintainer_: `Webpack Team` [![Github][githubicon]](https://github.com/webpack)
 - [PostCSS Loader](https://github.com/postcss/postcss-loader): PostCSS loader for Webpack. -- _Maintainer_: `PostCSS Team` [![Github][githubicon]](https://github.com/postcss) [![Twitter][twittericon]](https://twitter.com/PostCSS)
 - [CSS Loader](https://github.com/webpack/css-loader): CSS loader module for Webpack. -- _Maintainer_: `Webpack Team` [![Github][githubicon]](https://github.com/webpack)
-- [SASS Loader](https://github.com/jtangelder/sass-loader): SASS loader for Webpack. -- _Maintainer_: `Jorik Tangelder` [![Github][githubicon]](https://github.com/jtangelder) [![Twitter][twittericon]](https://twitter.com/jorikdelaporik)
+- [SASS Loader](https://github.com/webpack/sass-loader): SASS loader for Webpack. -- _Maintainer_: `Jorik Tangelder` [![Github][githubicon]](https://github.com/jtangelder) [![Twitter][twittericon]](https://twitter.com/jorikdelaporik)
 - [Less Loader](https://github.com/webpack/less-loader): Less loader module for Webpack. -- _Maintainer_: `Webpack Team` [![Github][githubicon]](https://github.com/webpack)
 - [Stylus Loader](https://github.com/shama/stylus-loader): A stylus loader for webpack. -- _Maintainer_: `Kyle Robinson Young` [![Github][githubicon]](https://github.com/shama) [![Twitter][twittericon]](https://twitter.com/shamakry)
 - [Isomorphic Style Loader](https://github.com/kriasoft/isomorphic-style-loader): Isomorphic CSS style loader for Webpack. -- _Maintainer_: `Kriasoft Team` [![Github][githubicon]](https://github.com/kriasoft) [![Twitter][twittericon]](https://twitter.com/kriasoft)

src/content/contribute/writing-a-loader.mdx

@@ -273,7 +273,7 @@ JSON.stringify(
 
 If the loader you're working on is a simple wrapper around another package, then you should include the package as a `peerDependency`. This approach allows the application's developer to specify the exact version in the `package.json` if desired.
 
-For instance, the `sass-loader` [specifies `node-sass`](https://github.com/webpack-contrib/sass-loader/blob/master/package.json) as peer dependency like so:
+For instance, the `sass-loader` [specifies `node-sass`](https://github.com/webpack/sass-loader/blob/main/package.json) as peer dependency like so:
 
 ```json
 {