docs: add note about the GitHub App

Author: ahmadnassri

README.md

@@ -1,7 +1,10 @@
-# Socket Security GitHub Action
+# Socket Security (GitHub Action)
 
 A GitHub Action for running [Socket.dev](https://socket.dev)
 
+> [!TIP]
+> A [GitHub App](https://github.com/marketplace/socket-security) is also available for a fully automated SCA workflow.
+
 ## Usage
 
 ### Socket Firewall: Free

action.yml

@@ -1,6 +1,6 @@
 name: Socket Security (Action)
 
-description: Run Socket.dev security analysis in firewall or CLI mode
+description: GitHub Action to run Socket in CLI or Firewall mode
 
 author: Socket Inc.