Merge pull request #4028 from replicatedhq/docs/notifications-json-definitions

docs(notifications): add subscription JSON definition and per-event filter keys

Author: alicenstar

.gitignore

@@ -33,3 +33,6 @@ yarn-error.log*
 
 # Algolia Search
 .env
+
+# Git worktrees
+.worktrees

docs/intro.mdx

@@ -86,7 +86,7 @@ import clsx from "clsx";
           className="whats-new-hero"
         >
           <div className="whats-new-badge">What's New</div>
-          <h2 className="whats-new-title">Set up notifications for key events (Beta)</h2>
+          <h2 className="whats-new-title">Set up notifications for key events</h2>
           <p className="whats-new-description">
             Get email or webhook notifications on the events that matter to your team, such as support bundle uploads, license expirations, release promotions, and more. 
           </p>