Add information about surveyor sheets to wiki

[jeffreyhanson]

This needs #65 to be finished first.

[jeffreyhanson]

I've updated the wiki pages with regards to the changes made along with the surveyor sheets, for reference these include:

• How can I remake all of the the species' graphs, maps, tables, and interactive widgets, and the surveyor sheets too?
• How can I specify (or not) if a species should appear in the surveyor sheet checklists?
• How can I specify (or change) the name of an atlas grid cell?
• How can I specify (or change) the checklist, kilometre, or minute target for an atlas grid cell?
• How can I specify (or change) the description of an atlas grid cell?
• How can I alter the formatting of the checklists in the surveyor sheets?
• How can I customize the appearance of the imagery in the surveyor sheets?
• How can I change the text which appears on the last page of the surveyor sheets?
• How can I update the atlas with a new version of the eBird data set?
• I get an error when I try pushing new assets?

I've also updated the Data and Atlas maintenance wiki pages too.

[jeffreyhanson]

@dbl3raf and @Louis-Backstrom, can you let me know if I've missed anything in the wiki?

[Louis-Backstrom]

Looks great @jeffreyhanson !

[dbl3raf]

As ever @jeffreyhanson this is amazing - I've taken a read through the wiki and only found a couple of minor typos. With enormous thanks to you, I'll close this issue.