Adapt documentation from CCHIC to set up SAG

[docsteveharris]

• [x] steve to talk to claire re this work
• [x] gather docs from CCHIC in one place
• [ ] adapt for CHIMERA purposes

[docsteveharris]

Steve and Claire need to allocate some time to build a mini-doc website for this And can move/translate the CCHIC docs at that stage

[docsteveharris]

@clairejblack : I think we should use this ticket to manage the ongoing work in the aborted pull request. see https://github.com/UCL-Chimera/chimera/pull/17

[docsteveharris]

closing as good working draft now available will need edits etc going forwards