Add deployer-version

action.yaml

@@ -31,7 +31,20 @@ inputs:
     required: false
     default: ''
     description: >
-      The SSH configuration.
+      The SSH configuration. Content of `~/.ssh/config` file.
+
+  deployer-version:
+    required: false
+    default: ''
+    description: >
+      Deployer version to download from deployer.org.
+
+      First, the action will check for Deployer binary at those paths:
+      - `vendor/bin/dep`
+      - `deployer.phar`
+
+      If the binary not found, phar version will be downloaded from
+      [deployer.org](https://deployer.org/download).
 
 runs:
   using: 'node12'