in the top right of each manual or reference or just make a pull request in any of the repositories
that can be found in the TYPO3 [documentation team GitHub organisation][6].
-[1]: https://wiki.typo3.org/Contribution_Walkthrough_Tutorials
+[1]: https://docs.typo3.org/typo3cms/ContributionWorkflowGuide/
[2]: https://git.typo3.org/Packages/TYPO3.CMS.git
[3]: https://review.typo3.org/#/q/project:Packages/TYPO3.CMS,n,z
[4]: https://github.com/TYPO3/TYPO3.CMS