Add doc comments

action.yml

@@ -55,7 +55,7 @@ inputs:
     required: false
     default: false
   target:
-    description: 'Target architecture'
+    description: 'Target architecture(s) the extension should run on'
     required: false
     default: ''
 

src/types.ts

@@ -49,6 +49,14 @@ export interface ActionOptions {
      */
     skipDuplicate?: boolean;
 
+    /**
+     * Target architecture(s) the extension should run on.
+     * This string needs to be formatted like 'arch1 arch2 arch3' when targeting multiple architectures.
+     *
+     * See the following for the possible target values:
+     *
+     * https://code.visualstudio.com/api/working-with-extensions/publishing-extension#platformspecific-extensions
+     */
     target?: string;
 }