Review emonSDexpand

[TrystanLea]

In import/restore documentation see note:

Note: If a new emonSD pre-built-SDcard image has been written to an SD card larger than 4GB the read-write ~/data partition should be expanded to fill the SD card to create sufficient space to import a backup. Do not use Raspbian raspi-config, instead connect via SSH) and run $ sudo emonSDexpand and follow prompts.

[alexandrecuer]

see

#98