Add `APIKey API` page (#1799)
Add `APIKey API` page (#1799)

* add APIKey API page

* move to 5.15 docs

* update APIKeys API page

* Remove patch; replace examples

* Incorporate Nikki's second round of comments

* Update content/sensu-go/5.15/api/apikeys.md

Co-Authored-By: Nikki Attea <e6c2ecc2e388fb04d0ff15d566d3dd54cecc8378@sensu.io>

* Update content/sensu-go/5.15/api/apikeys.md

Co-Authored-By: Nikki Attea <e6c2ecc2e388fb04d0ff15d566d3dd54cecc8378@sensu.io>

* Update content/sensu-go/5.15/api/apikeys.md

Co-Authored-By: Nikki Attea <e6c2ecc2e388fb04d0ff15d566d3dd54cecc8378@sensu.io>

* Update content/sensu-go/5.15/api/apikeys.md

Co-Authored-By: Nikki Attea <e6c2ecc2e388fb04d0ff15d566d3dd54cecc8378@sensu.io>

* Update content/sensu-go/5.15/api/apikeys.md

Co-Authored-By: Nikki Attea <e6c2ecc2e388fb04d0ff15d566d3dd54cecc8378@sensu.io>

* Update content/sensu-go/5.15/api/apikeys.md

Co-Authored-By: Nikki Attea <e6c2ecc2e388fb04d0ff15d566d3dd54cecc8378@sensu.io>

sensu/sensu-docs,sensu/sensu-docs,sensu/sensu-docs,sensu/sensu-docs,sensu/sensu-docs