fix doc link (#865)

Author: starryeyez024

docs/content/develop/step-2c.md

@@ -131,6 +131,6 @@ You'll notice `<style>` contains everything we just wrote in our Sass file. Sass
 
 Now that our `pfe-cool-element` is more appealing, we'll add the follow button's interaction and fill in the profile photo. We can accomplish both of these tasks by updating the `/src/pfe-cool-element.js` file.
 
-<a href="/theme/cp-color">Learn more about applying theme colors here.</a>
+<a href="/theme/color-palette/">Learn more about applying theme colors here.</a>
 
 [Move to Step 2: Develop (Javascript)](../step-2d)