Add comment

Author: nyabkun

bash2pwsh.js

@@ -12,13 +12,19 @@ const dest = process.argv[3];
 
 try {
   const bash = fs.readFileSync(src, "utf8");
-  const pwsh = convert(bash);
+  let pwsh = convert(bash);
+
+  pwsh =
+    `\
+# This file is auto generated by bash2pwsh.js
+
+` + pwsh;
 
   fs.writeFileSync(dest, pwsh);
 
   console.log(`"${dest}" was created Successfully!`);
 } catch (err) {
-  console.log(err.message);
+  console.log("Error : " + err.message);
 }
 
 /**