updated the description

Author: 6mile

action.yml

@@ -1,5 +1,5 @@
-name: 'SecureStack Code Analysis'
-description: 'Execute SecureStack Code Analysis'
+name: 'SecureStack Application Composition Analysis'
+description: 'Scan your source code in real-time for vulnerable libraries you are using'
 inputs:
   securestack_api_key:
     description: 'SecureStack API key - generate an API key at https://app.securestack.com'