typo

README.md

@@ -140,7 +140,7 @@ Now is when we start deviating from the parametric axis. I'm going to make on ma
 
 I'm feeling ready to start 'boxing it out' - i.e. adding some structure to these so-far so-flappy axis. Here we go:
 
-![layout-ready](https://gitlab.cba.mit.edu/jakeread/machineweek/raw/master/images/layout-read.jpg)
+![layout-ready](https://gitlab.cba.mit.edu/jakeread/machineweek/raw/master/images/layout-ready.jpg)
 
 And the X-Axis... Stiffness is king! But weight is not your friend...