Merge pull request #13589 from Amit0617/patch-6

Add link to the Execution API Inspector page.

Author: corwintines

public/content/developers/docs/apis/json-rpc/index.md

@@ -26,7 +26,7 @@ An internal API is also used for inter-client communication within a node - that
 
 ## Execution client spec {#spec}
 
-[Read the full JSON-RPC API spec on GitHub](https://github.com/ethereum/execution-apis).
+[Read the full JSON-RPC API spec on GitHub](https://github.com/ethereum/execution-apis). This API is documented on the [Execution API webpage](https://ethereum.github.io/execution-apis/api-documentation/) and includes an Inspector to try out all the available methods.
 
 ## Conventions {#conventions}