Fix greybus host docs for beagleplay

See merge request docs/docs.beagleboard.io!64

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>

My Main to Staging of Main/relay.rst and 02sensors.rst

See merge request docs/docs.beagleboard.io!50

Updated Instructions up to Flashing CC13

See merge request docs/docs.beagleboard.io!63

Remove contributors section (boiler plate text)

See merge request docs/docs.beagleboard.io!62

Basic beagleplay greybus demo docs

See merge request !61

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>

- Fixed some problems found during testing
- Mikrobus driver is not present in 6.6 kernel yet, so need to wait or
  add instructions to compile driver out of tree.

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>

- A very rough first draft.
- Not completely tested.

Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>

Add OSHW mark for all boards

See merge request docs/docs.beagleboard.io!60