Merge pull request #6297 from newrelic/bradleycamacho-patch-4

Add API  explorer callout

src/content/docs/apis/rest-api-v2/api-explorer-v2/introduction-new-relics-rest-api-explorer.mdx

@@ -25,6 +25,8 @@ New Relic offers [several APIs](/docs/apis/getting-started/introduction-new-reli
 
 This helps you to quickly search for solutions and test your API calls before adding them to your own software components.
 
+REST API calls for infrastructure alerts are not available in the API Explorer.
+
 ## Features
 
 New Relic's API Explorer includes an interactive user interface for your selected account. The API Explorer UI lists the types of API calls (**Applications**, **Users**, etc.) and their available functions, such as **GET metric data**, **PUT (update) applications**, **DELETE applications**, etc.
@@ -50,4 +52,4 @@ Be aware there are some differences between version 2 and 1:
 
 <Callout variant="tip">
   The New Relic agents use different APIs and are not accessible via the API Explorer.
-</Callout>
+</Callout>