Update How-to-run-things-locally.html

Adding options for live server plugins for popular code editors.

docs/manual/en/introduction/How-to-run-things-locally.html

@@ -48,6 +48,15 @@
 				production servers such as [link:https://www.apache.org/ Apache] or [link:https://nginx.org NGINX], however they should be sufficient for testing your
 				three.js application.
 			</p>
+			
+			<h3>Plugins for popular code editors</h3>
+			<div>
+				<p>Some code editors have plugins which will spawn a simple server on demand.</p>
+				<ul>
+					<li>[link:https://marketplace.visualstudio.com/items?itemName=ritwickdey.LiveServer Live Server] for Visual Studio Code.</li>
+					<li>[link:https://atom.io/packages/atom-live-server Live Server] for Atom.</li>
+				</ul>
+			</div>
 
 			<h3>Servez</h3>
 			<div>