MR - Documentation Template - fixing dead links

.gitlab/merge_request_templates/Documentation.md

@@ -15,9 +15,9 @@
 
 ## Author's checklist (required)
 
-- [ ] Follow the [Documentation Guidelines](https://docs.gitlab.com/ee/development/documentation/) and [Style Guide](https://docs.gitlab.com/ee/development/documentation/styleguide.html).
+- [ ] Follow the [Documentation Guidelines](https://docs.gitlab.com/ee/development/documentation/) and [Style Guide](https://docs.gitlab.com/ee/development/documentation/styleguide/).
 - If you have **Developer** permissions or higher:
-  - [ ] Ensure that the [product tier badge](https://docs.gitlab.com/ee/development/documentation/styleguide.html#product-badges) is added to doc's `h1`.
+  - [ ] Ensure that the [product tier badge](https://docs.gitlab.com/ee/development/documentation/styleguide/index.html#product-tier-badges) is added to doc's `h1`.
   - [ ] Apply the ~documentation label, plus:
     - The corresponding DevOps stage and group labels, if applicable.
     - ~"development guidelines" when changing docs under `doc/development/*`, `CONTRIBUTING.md`, or `README.md`.