docs/index.html: fiddle with buttons at bottom of the page

.docs/index.html

@@ -139,10 +139,13 @@ <h2 class="shadow-text">Getting Started</h2>
 	<div class="panel-generic">
 		<p>If you're familiar with WorldEdit already, then WorldEditAdditions will follow the existing expectations you're used to. For players new to WorldEdit / WorldEditAdditions, we have a tutorial that will get you up to speed in no time!</p>
 
+		<p>Are you a mod developer who wants to extend or hack on WorldEditAdditions? Check out our Lua API, and our <a href="https://github.com/sbrl/Minetest-WorldEditAdditions/blob/main/CONTRIBUTING.md">contributing docs</a>!</p>
+
 		<ul class="bigbutton-list">
-			<li><a class="bigbutton" href="/Reference">Reference</a></li>
-			<li><a class="bigbutton" href="/Cookbook">Cookbook</a></li>
 			<li><a class="bigbutton" href="/Tutorial">Tutorial</a></li>
+			<li><a class="bigbutton" href="/Cookbook">Cookbook</a></li>
+			<li><a class="bigbutton" href="/Reference">Reference</a></li>
+			<li><a class="bigbutton" href="/api">Lua API</a></li>
 		</ul>
 	</div>
 </section>