Move semantic versioning text to CONTRIBUTING.md

Signed-off-by: Graham <gpe@openrs2.org>

CONTRIBUTING.md

@@ -60,6 +60,10 @@ The full text of the DCO is available in the `DCO` file.
 OpenRS2 does not distribute any of Jagex's intellectual property, and care
 should be taken to avoid inadvertently including any in contributions.
 
+## Versioning
+
+OpenRS2 uses [Semantic Versioning][semver].
+
 ## Gitea
 
 OpenRS2 only uses GitHub as a mirror. Issues and pull requests should be
@@ -72,3 +76,4 @@ submitted to [OpenRS2's self-hosted Gitea instance][gitea].
 [idea]: https://www.jetbrains.com/idea/
 [ktlint]: https://github.com/pinterest/ktlint#readme
 [rewriting-history]: https://git-scm.com/book/en/v2/Git-Tools-Rewriting-History
+[semver]: https://semver.org/

README.md

@@ -60,10 +60,6 @@ that use the `deob-annotations` processor. A workaround is to add
 File -> Settings -> Build, Execution and Deployment -> Compiler. See
 [IDEA-256707][idea-bug] for more information.
 
-### Versioning
-
-OpenRS2 uses [Semantic Versioning][semver].
-
 ## Links
 
 * [Discord][discord]
@@ -87,5 +83,4 @@ available in the `LICENSE` file.
 [issue-tracker]: https://git.openrs2.org/openrs2/openrs2/issues
 [jdk]: https://jdk.java.net/
 [kdoc]: https://docs.openrs2.org/
-[semver]: https://semver.org/
 [www]: https://www.openrs2.org/