close.io docs added with navigation and images

[Adorism]

Change description

New documentation page added for Close.io. Includes accompanying images and navigation.

Checklists

Development

• Application changes have been tested appropriately

Impact

• Code follows company security practices and guidelines
• Security impact of change has been considered
• Performance impact of change has been considered
• Possible migration needs considered (model migrations, config migrations, etc.)

Please explain any security, performance, migration, or other impacts if relevant:

Code review

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[teallarson]

Looks good. I do wonder if we want to shift toward calling them Close/Close CRM as that's what they call themselves it looks like... but our package is called @grouparoo/closeio so I'm torn there.

[Adorism]

I'll look into the naming we should use for them. And I think I should wait for the sync methods PR to merge /make a small edit related to that as well.