Add SemVer description to README (#28)

* Add SemVer description to README

* Add SemVer URL to README

Author: sheldon-workos

README.md

@@ -36,6 +36,10 @@ php artisan vendor:publish --provider="WorkOS\Laravel\WorkOSServiceProvider"
 The package will need to be configured with your [api key](https://dashboard.workos.com/api-keys) and [project id](https://dashboard.workos.com/sso/configuration).
 By default, the package will look for a `WORKOS_API_KEY` and `WORKOS_CLIENT_ID` environment variable.
 
+## SDK Versioning
+
+For our SDKs WorkOS follows a Semantic Versioning ([SemVer](https://semver.org/)) process where all releases will have a version X.Y.Z (like 1.0.0) pattern wherein Z would be a bug fix (e.g., 1.0.1), Y would be a minor release (1.1.0) and X would be a major release (2.0.0). We permit any breaking changes to only be released in major versions and strongly recommend reading changelogs before making any major version upgrades.
+
 ## More Information
 
 * [Single Sign-On Guide](https://workos.com/docs/sso/guide)