Docs: Update endpoints for pql APIs

Author: robertjdominguez

docs/promptql-apis/execute-program-api.mdx

@@ -103,7 +103,7 @@ Execute a PromptQL program with your data.
 
 ### Request
 
-`POST https://api.promptql.pro.hasura.io/execute_program`
+`POST https://promptql.ddn.hasura.me/api/execute_program`
 
 :::note Private DDN Endpoint
 

docs/promptql-apis/natural-language-api.mdx

@@ -71,7 +71,7 @@ Send messages to PromptQL and receive responses, optionally in a streaming forma
 
 ### Request
 
-`POST https://api.promptql.pro.hasura.io/query`
+`POST https://promptql.ddn.hasura.me/api/query`
 
 :::note Private DDN Endpoint