Added help for Mindustry

website/help_mindustry.html

@@ -36,8 +36,22 @@
           <div class="download"><a href="https://github.com/Anuken/Mindustry/releases">DOWNLOAD</a></div>
           <h2>Tips</h2>
           <ul>
+            <li>
+              There is lots of stuff to build, so at first things will be
+              daunting, but worry not, the mode is co-op so you are all
+              working together.
+            </li>
+            <li>Move around with the WASD keys.</li>
+            <li>Use the left mouse button to shoot or build. It will build if you select something from the menu in the bottom right, otherwise it will shoot.</li>
           </ul>
           <h2>Connecting</h2>
+          <p>
+            From the main menu choose &quot;Play&quot; and then &quot;Join
+            Game&quot;. You will be able to set you in-game name here.
+          </p>
+          <p>To join the server, click on &quot;Add Server&quot; and type in DOMAINNAME. When you press Ok, it will be added under &quot;Remote Servers&quot;.</p>
+          <img src="img/help_mindustry.png" alt="The join screen in Mindustry with the server added" class="img-fluid">
+          <p>You can then click on the server name to join.</p>
         </div>
         <div class="col-6 col-md-4">
           <h5>Live stats</h5>