Update BeagleBone_Blue_Pin_Table.csv

Fix MDIR_1A

Based on https://github.com/beagleboard/librobotcontrol/blob/999cbe22fa5cc3f5fed7143aa5ddd8269bdacb69/library/src/motor.c#L17-L20

Make it clear where home is

added graphic showing pinouts of some of the jumpers

Update

Add motor driver strength

Fix for issue #8

List temperature range of parts in BOM

A global search and replace s/TB6621FNG/TB6612FNG/g of
the eagle files.

Updated the PDF with the typo fixed

https://github.com/beagleboard/beaglebone-blue/issues/9

added some documentation

Fix spelling mistake

occsaions -> occasions

Tighten up the tolerance on the voltage reading resistors