Implement user guide for GraphQL

[jedelman8]

Proposed Changes

Add a user guide for using GraphQL.

Justification

GraphQL is quite new for the network industry and having a user guide with examples will help users get started making common queries. The user guide should include examples using GraphiQL, but also how to make an HTTP POST to the /graphql endpoint using Postman and Python requests. Consider creating a "demo" repo in the Nautobot org that contains a library of GraphQL queries.

[jtdub]

You can assign this to me.

[glennmatthews]

Thanks!

[tim-fiola]

Hi @jtdub @glennmatthews @jedelman8. I'm happy to take this on. I've already got a slide deck that shows step-by-step how to make the queries in Postman and native Python. I'm happy to take this off your plate since I love doing this type of stuff.

[jedelman8]

@jtdub what's your timing on this? We are looking to come out of beta this month and need to see what user guides will make it for 1.0.0 and which ones we should move to 1.1.0.