Docs: correct grunt command in README.md

Fixes gh-1850

diff --git a/README.md b/README.md
index 1cbba3cd8ce0bf3c93dce11782cb7d4e45a1b3a1..01455a40fc5a658a32d1ef06cc3f7df76d7d1759 100644 (file)
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ npm install -g grunt-cli
 ```
 Make sure you have `grunt` installed by testing:
 ```
-grunt -v
+grunt -V
 ```
 
 Now by running the `grunt` command, in the jquery directory, you can build a full version of jQuery, just like with a `npm run build` command: