Added hardware section to articles

README.md

@@ -40,6 +40,7 @@ Creative coding is a different discipline than programming systems in which the
           <ul>
             <li><a href="#shaders--opengl--webgl">Shaders • OpenGL • WebGL</a></li>
             <li><a href="#canvas">Canvas</a></li>
+            <li><a href="#hardware-2">Hardware</a></li>
             <li><a href="#other-1">Other</a></li>
           </ul>
       </li>
@@ -302,6 +303,10 @@ Creative coding is a different discipline than programming systems in which the
 - [Shepherding random numbers](http://inconvergent.net/shepherding-random-numbers/) - Tiny guide to shepherding random numbers.
 - [Amit’s Game Programming Information](http://www-cs-students.stanford.edu/~amitp/gameprog.html) - Collection of resources on stuff like path-finding, Ai, math etc.
 
+### Hardware
+- [Pen Plotter Art & Algorithms Part 1](https://mattdesl.svbtle.com/pen-plotter-1)[Part 2](https://mattdesl.svbtle.com/pen-plotter-2) - How to use the AxiDraw pen plotter with JavaScript.
+
+
 ### Interactive
 
 - [Shader-school](https://github.com/stackgl/shader-school) - Workshop for GLSL shaders and graphics programming.
@@ -332,6 +337,7 @@ Creative coding is a different discipline than programming systems in which the
 - [The newbie's PBR Cheat Sheet](https://www.artstation.com/artwork/YeBr3) - Short and sweet visual overview on PBR.
 - [PixelSpirit](http://pixelspiritdeck.com/) - GLSL library on the back of tarot cards, for learning and reference.
 
+
 ## Communities
 
 ### Subreddits