Improve difficulty images to be more visible, add note to new article.

index.html

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 			<h2>Welcome to the Mesecons Laboratory!</h2>
 			<p>Here you'll find various articles on the <a href="http://mesecons.net/">Mesecons mod</a> for <a href="http://minetest.net/">Minetest</a>.</p>
 			<p>The primary subject is the design and construction of larger or more advanced machines, a topic not very well covered elsewhere. For a simpler introduction to Mesecons, see the main site linked above.</p>
-			<p>This site has a Minetest <a href="">forum topic</a> too!</p>
+			<p>This site has a Minetest <a href="http://forum.minetest.net/viewtopic.php?id=5113">forum topic</a> too! Additionally, the source code is available at the <a href="https://github.com/Uberi/uberi.mesecons.net">GitHub repository</a>.</p>
 			<p>All articles assume basic knowlege of how Mesecons work, and some may also assume some proficiency in the <a href="http://www.lua.org/about.html">Lua programming language</a>.</p>
 
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projects/TicTacToe/index.html

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 			</p>
 			<p>Unless you've been living under a rock five hundred meters below the surface of Europa, you've probably heard of tic-tac-toe. Maybe. In any case, I won't be explaining how it's played; if you care to refresh your memory, here's a lovely <a href="http://en.wikipedia.org/wiki/Tic-tac-toe">Wikipedia article</a>. Better? Better.</p>
 			<img src="img/Machine.png" alt="Tic-tac-toe machine">
+			<h2>This article is a work-in-progress! Check out some of the other articles at the <a href="../../index.html" class="title">homepage</a>!</h2>
 			<p></p>
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