make it more clear which keys are for which endpoints

Author: ethanpalm

api-reference/introduction.mdx

@@ -19,13 +19,13 @@ You can generate an API key through [the dashboard](https://dashboard.mintlify.c
 
 ### Admin API key
 
-The admin API key is used for the majority of the API. It is used to trigger updates and get update status.
+The admin API key is used for the [Trigger update](/api-reference/update/trigger) and [Get update status](/api-reference/update/status) endpoints.
 
 Admin API keys begin with the `mint_` prefix. Keep your admin API keys secret.
 
 ### Assistant API key
 
-The assistant API key is used for generating assistant chat messages through the API. Responses include citations so you can point your users to the right destinations for more information.
+The assistant API key is used for the [Generate assistant message](/api-reference/assistant/create-assistant-message) and [Search documentation](/api-reference/assistant/search) endpoints.
 
 Assistant API keys begin with the `mint_dsc_` prefix.