tweak language in getting started warning

Author: chrisvfritz

src/v2/guide/index.md

@@ -12,7 +12,7 @@ If you are an experienced frontend developer and want to know how Vue compares t
 
 ## Getting Started
 
-<p class="tip">The official guide assumes intermediate level front-end knowledge of HTML, CSS and JavaScript. If you are totally new to front-end development, it might not be the best idea to jump right into a framework as your first step - grasp the basics then come back! Prior experience with other frameworks helps, but is not required.</p>
+<p class="tip">The official guide assumes intermediate level knowledge of HTML, CSS, and JavaScript. If you are totally new to frontend development, it might not be the best idea to jump right into a framework as your first step - grasp the basics then come back! Prior experience with other frameworks helps, but is not required.</p>
 
 The easiest way to try out Vue.js is using the [JSFiddle Hello World example](https://jsfiddle.net/chrisvfritz/50wL7mdz/). Feel free to open it in another tab and follow along as we go through some basic examples. Or, you can simply create an `.html` file and include Vue with: