Published a board design, threw in an LTSpice tutorial

[cellularmitosis]

I recently designed a simple board to control headlight relays in my truck.

In addition to publishing the KiCAD design on github, I decided to also document how I used LTSpice to simulate the circuit, and how that shaped the design process.

I figured the beginners here might find it useful.

https://github.com/pepaslabs/HeadlightRelayControl

In the future, I think I'll try to document my design process like this more frequently.  Its very useful when you haven't touched LTSpice in 6 months and have forgotten everything you previously learned!