Fix broken link (#54)

Signed-off-by: Rohan Chitale <[email protected]>

Author: rchitale7

RELEASING.md

@@ -26,7 +26,7 @@ Do not creating branches in the upstream repo, use your fork, for the exception
 
 ## Versioning
 
-All distributions in this organization [follow SemVer](https://opensearch.org/blog/technical-post/2021/08/what-is-semver/). A user-facing breaking change can only be made in a major release. Any regression that breaks SemVer is considered a high severity bug.
+All distributions in this organization [follow SemVer](https://opensearch.org/blog/what-is-semver/). A user-facing breaking change can only be made in a major release. Any regression that breaks SemVer is considered a high severity bug.
 
 ### Version Numbers