jig version dir and BOM typos

[danboid]

The dir for the ESP programming jig schematics is labelled v2.1 but its actually v1.2

https://github.com/Uzebox/uzebox/tree/master/schematics/ESP-12F-Programming-Jig/V2.1

I only noticed tonight that you had sent me (five of) v1.1 of the jig PCB and it doesn't have any holes for the switches legs so I don't think they're any use unfortunately.

[danboid]

You have made the same inverted version number mistake twice in the jigs BOM too:

ESP-12F programming Jig **V2.1** BOM - All parts from Digikey
For 3V or 5V FTDI FT232 cables

Note: Parts footprints compatible with PCB Rev **2.1**

It definitely says v1.2 on the PCB.