Update index.html

docs/index.html

@@ -626,7 +626,7 @@ <h2 id="how-to-use-this-guide">How to use this guide</h2>
 <p>It’s important to ensure that all products can be used as intended and that end-users understand the interface and can get the outcome they need easily. This guide contains clear and consistent guidelines on core design elements, including colour palettes, typography, and layout structures.</p>
 <!-- <p>In the final version you will also find screengrabs of templates to be used in Workshop - with annotations to explain which Workshop widgets to use.</p> -->
 <h2 id="top-five-things-to-consider">Top five things to consider</h2>
-<h3 id="1-core-colours">1. Core colours</h3>
+<h3 id="1-core-colours">1. Colours</h3>
 <table class="app-colour-list" summary="Table of main colours">
     <tbody>
       <tr class="app-colour-list__row">
@@ -718,7 +718,7 @@ <h3 id="use-of-colours">Use of colour</h2>
 </li>
 </ul>
 
-<h3 id="core-colours">Colours</h3>
+<h3 id="core-colours">Core colours</h3>
 
 <table class="app-colour-list" summary="Table of main colours">
     <tbody>