fritzing schematic wrong for oled i2c example

[ImmanuelH]

The image of the fritzing schematic for oled i2c example (pico-examples/i2c/oled_i2c/oled_i2c_bb.png) is wrong.
All connections are off by one. I have not checked is this also applies to the fritzing schematic itself.

[lurch]

Thanks, see #194

[kilograham]

merged into develop