Added Share Command to the List of Commands

Thanks to @adamwathan for the help

cli/valet.php

@@ -197,6 +197,13 @@
      passthru("open ".escapeshellarg($url));
  })->descriptions('Open the site for the current directory in your browser');
 
+/**
+ * Generate a publicly accessible URL for your project.
+ */
+$app->command('share', function () {
+    warning("It looks like you are running `cli/valet.php` directly, please use the `valet` script in the project root instead.");
+})->descriptions('Generate a publicly accessible URL for your project');
+
 /**
  * Echo the currently tunneled URL.
  */