Here you’ll find both the User and Developer documentation for GPMDP. If you have any questions please head over to Gitter and ask there before raising a GitHub issue. The application is written in Javascript using the new ES6 standard, because of this we use babel to transpile all our ES6 code into ES5 compatabile code.
Please keep in mind that GPMDP uses quite a few upstream modules to make our job easier so you might want to check their docs out as well.