add into the Document Guide Make a GraphQL API call graphql mutation example

[Sky-bits]

Overview/summary

GraphQL API call graphql mutation ...

Motivation

all document good but for dev reference not all the guide

What inspired this enhancement? Document Guide Make a GraphQL API call graphql updated ...

Area

• [ ] Add any relevant Area: <area> labels to this issue

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Checklist

• [ ] I have described this enhancement in a way that is actionable (if possible)