updated README.md to contain more extensions (#155)

* updated README.md to contain more extensions

* Update README.md

Co-authored-by: Luis Gabriel Gomez <lggomez@users.noreply.github.com>

Co-authored-by: Luis Gabriel Gomez <lggomez@users.noreply.github.com>

README.md

@@ -46,9 +46,16 @@ See [the project documentation](https://pkg.go.dev/github.com/golang-jwt/jwt) fo
 
 ## Extensions
 
-This library publishes all the necessary components for adding your own signing methods.  Simply implement the `SigningMethod` interface and register a factory method using `RegisterSigningMethod`.  
+This library publishes all the necessary components for adding your own signing methods.  Simply implement the `SigningMethod` interface and register a factory method using `RegisterSigningMethod`. 
 
-Here's an example of an extension that integrates with multiple Google Cloud Platform signing tools (AppEngine, IAM API, Cloud KMS): https://github.com/someone1/gcp-jwt-go
+A common use case would be integrating with different 3rd party signature providers, like key management services from various cloud providers or Hardware Security Modules (HSMs).
+
+| Extension | Purpose                                                                                      | Repo                                       |
+|-----------|----------------------------------------------------------------------------------------------|--------------------------------------------|
+| GCP       | Integrates with multiple Google Cloud Platform signing tools (AppEngine, IAM API, Cloud KMS) | https://github.com/someone1/gcp-jwt-go     |
+| AWS       | Integrates with AWS Key Management Service, KMS                                              | https://github.com/matelang/jwt-go-aws-kms |
+
+*Disclaimer*: Unless otherwise specified, these integrations are maintained by third parties and should not be considered as a primary offer by any of the mentioned cloud providers
 
 ## Compliance