chore: adjust GitHub links to Electron Packager

CONTRIBUTING.md

@@ -4,7 +4,7 @@ Electron Packager is a community-driven project. As such, we welcome and encoura
 contributions. They include, but are not limited to:
 
 - Constructive feedback
-- [Questions about usage](https://github.com/electron-userland/electron-packager/blob/master/SUPPORT.md)
+- [Questions about usage](https://github.com/electron/electron-packager/blob/master/SUPPORT.md)
 - [Bug reports / technical issues](#before-opening-bug-reportstechnical-issues)
 - Documentation changes
 - Feature requests
@@ -40,7 +40,7 @@ messages when a script errors.**
 
 ## Contribution suggestions
 
-We use the label [`help wanted`](https://github.com/electron-userland/electron-packager/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22) in the issue tracker to denote fairly-well-scoped-out bugs or feature requests that the community can pick up and work on. If any of those labeled issues do not have enough information, please feel free to ask constructive questions. (This applies to any open issue.)
+We use the label [`help wanted`](https://github.com/electron/electron-packager/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22) in the issue tracker to denote fairly-well-scoped-out bugs or feature requests that the community can pick up and work on. If any of those labeled issues do not have enough information, please feel free to ask constructive questions. (This applies to any open issue.)
 
 ## Filing Pull Requests