docs: update action name

needs a unique name for publishing to marketplace

Author: ahmadnassri

README.md

@@ -4,9 +4,9 @@ A GitHub Action for running [Socket.dev](https://socket.dev)
 
 ## Usage
 
-### Socket Firewall
+### Socket Firewall: Free
 
-Downloads and installs the Socket Firewall in your GitHub Action job, making it available to use in subsequent steps.
+Downloads and installs [Socket Firewall: Free](https://github.com/SocketDev/sfw-free) in your GitHub Action job, making it available to use in subsequent steps.
 
 ```yaml
 on: push

action.yml

@@ -1,4 +1,4 @@
-name: Socket
+name: Socket Security (Action)
 
 description: Run Socket.dev security analysis in firewall or CLI mode
 
@@ -12,7 +12,6 @@ inputs:
   mode:
     description: Operation mode firewall or cli
     required: true
-    default: firewall
 
   github-token:
     description: GitHub API Token used for downloading binaries