updated several hyperlinks in readme
several of the hyperlinks were not working so updated them after finding them in current documentation as best i could
The 17.0 major release is coming on May 16, 2024! This version brings many exciting improvements to GitLab, but also removes some deprecated features. We are introducing three breaking change windows during which we expect breaking changes to be deployed to GitLab.com. You can read more about it on our blogpost. The third breaking change window begins 2024-05-06 09:00 UTC and ends 2024-05-08 22:00 UTC.
several of the hyperlinks were not working so updated them after finding them in current documentation as best i could