Port using-gatsby-image site to image plugin

examples/using-gatsby-image/README.md

@@ -2,6 +2,6 @@
 
 https://using-gatsby-image.gatsbyjs.org
 
-Gatsby example site that shows how to use [gatsby-plugin-image](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-image) plugin.
+Gatsby example site that shows how to use [gatsby-plugin-image](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-image).
 
 [![Edit using-gatsby-image](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/github/gatsbyjs/gatsby/tree/master/examples/using-gatsby-image)

examples/using-gatsby-image/src/pages/dominant-color.js

@@ -24,8 +24,8 @@ const DominantColor = ({ data, location }) => (
     <h2>Progressive Loading with Minimal Effort</h2>
     <p>
       The magic of Gatsby Image's Dominant color technique means that you can
-      load an image at moderate resolution and not have to bother with creating
-      a small thumbnail yourself. Gatsby Image will automatically create a
+      load a unique image placeholder and not have to bother with creating a
+      small thumbnail yourself. Gatsby Image will automatically create a
       properly sized div with a background color generated based on your
       specific image. When the page loads, the div will load first for quick
       display while the larger image file is downloaded and displayed.