Add missing words in sentence & change jekyll watch instruction.

(cherry picked from commit 5b482d7e7acd700967a0c067f6ee043cffbc2cac)

1 files changed, 3 insertions, 1 deletions

diff --git a/theme-setup/index.md b/theme-setup/index.md
index 285e169..c546119 100644
--- a/theme-setup/index.md
+++ b/theme-setup/index.md
@@ -236,7 +236,9 @@ To modify the site's JavaScript files I setup a Grunt build script to lint/conca
 npm install
 {% endhighlight %}
 
-From the theme's root, use `grunt` concatenate JavaScript files, and optimize .jpg, .png, and .svg files in the `images/` folder. You can also use `grunt dev` in combination with `jekyll build --watch` to watch for updates JS files that Grunt will then automatically re-build as you write your code which will in turn auto-generate your Jekyll site when developing locally.
+From the theme's root, use `grunt` to concatenate JavaScript files and optimize `.jpg`, `.png` and `.svg` files in the `images/` folder.
+
+You can also use `grunt dev` in combination with `bundle exec jekyll serve` to watch for updates in JS files that Grunt will then automatically re-build as you write your code, which will in turn auto-generate your Jekyll site when developing locally.
 
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