One of the advantages of using the doc format to share code
is the ability to embed graphics and pictures.
When setting up the pins on the Arduino for I/O
it is nice to have a picture of the microcomputer
pin outs.
Also when understanding code constructs it is nice to
have built in documentation.
Calculations in "C" can get very cryptic.
This is a wonderful way to document source code.
Here is a first example using Kevin's EFI code.
Paul Lamar