add step video

README.md

@@ -2,6 +2,8 @@
 
 Beneath [the module](https://gitlab.cba.mit.edu/jakeread/ucbus-module).
 
+[DEV LOG](log/ucbus-stepper-log.md)
+
 Networked step driver (or) general purpose 2-H-Bridge ute. Uses module for micro / network drivers, all other parts are 0805 or similar to hand-solder easily. 
 
 D51