Add section about Beta releases in the README.md (#258)

* Add section about Beta releases in the README.md

* Improvement to README.md

* Update README.md

Author: amadeo-workos

README.md

@@ -38,6 +38,19 @@ workos.client_id = "client_1234"
 
 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.
 
+## Beta Releases
+
+WorkOS has features in Beta that can be accessed via Beta releases. We would love for you to try these
+and share feedback with us before these features reach general availability (GA). To install a Beta version,
+please follow the [installation steps](#installation) above using the Beta release version.
+
+> Note: there can be breaking changes between Beta versions. Therefore, we recommend pinning the package version to a
+> specific version. This way you can install the same version each time without breaking changes unless you are
+> intentionally looking for the latest Beta version.
+
+We highly recommend keeping an eye on when the Beta feature you are interested in goes from Beta to stable so that you
+can move to using the stable version.
+
 ## More Information
 
 - [Single Sign-On Guide](https://workos.com/docs/sso/guide)