Update generate_tenant_token_scratch.mdx

Fixed #2893

Author: postmeback

learn/security/generate_tenant_token_scratch.mdx

@@ -64,7 +64,7 @@ Consult the [token payload reference](/learn/security/tenant_token_reference) fo
 
 ## Encode header and payload
 
-You must then encode both the header and the payload into `base64`, concatenate them, and generate the token by signing it using your chosen encryption algorithm.
+You must then encode both the header and the payload into `base64`, concatenate them, and generate the token by signing it using your chosen encryption algorithm. For more details [click here](https://jwt.io/).
 
 ## Make a search request using a tenant token