prepare for getting the w3c validation passed

index.html

@@ -32,10 +32,11 @@
 	
 	
 	<div id="text" style="width: 90%" class="w3-card-16 w3-margin-left w3-padding-jumbo w3-light-grey w3-leftbar w3-border-green">
+	<article>
 	<p>This mod adds good-looking, realistic trains to minetest. It introduces rails that make turns of only 30 degrees instead of 90.</p>
 
 	<p><h3>Until now are supported:</h3>
-	<li>tracks and switches, based on angles of 30(!) degrees</li>
+	<ul><li>tracks and switches, based on angles of 30(!) degrees</li>
 	<li>wagons that drive on these rails and collide with nodes in the environment(they need 3x3x3 space)</li>
 	<li>a steam engine</li>
 	<li>a regular green wagon</li>
@@ -69,10 +70,10 @@
 	- inside a locomotive, use W/S to accelerate/decelerate the train. This will fail if the train can't move in the desired direction. Shift stops the train, aux1 (default E)or right-click on wagon will let you off.
 	- drive two trains together and they will connect by right-clicking that green icon that appears.
 	- punch the red couple icon between wagons to discouple them
+	</ul>
 	</div>
 	
 	<div id="text" style="width: 90%" class="w3-card-16 w3-margin-left w3-margin-top w3-padding-jumbo w3-light-grey w3-leftbar w3-border-red">
-	<article>
 	
 	<p class="w3-margin-top"><h3>Minetest forum</h3>
 	<a href="https://forum.minetest.net/viewtopic.php?f=9&t=14726"><button class="w3-btn w3-ripple w3-green">advanced trains</button></a>
@@ -81,10 +82,12 @@
 	
 	<div id="text" style="width: 90%" class="w3-card-16 w3-margin-left w3-margin-top w3-margin-bottom w3-padding-jumbo w3-light-grey w3-leftbar w3-border-red">
 
+
 	<p class="w3-margin-top"><h3>Download/Github</h3>
 	<a href="download/index.html"><button class="w3-btn w3-ripple w3-green">Download/Github</button></a>
 	</p>
     </div>
+    </article>
 	
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