added ` for code view.
added ` for code view.

One `sg_event_id` was missing it's leading `, which threw off the visual of the whole paragraph.
sendgrid/docs,katieporter/docs,ksigler7/docs,sendgrid/docs,Whatthefoxsays/docs,Whatthefoxsays/docs,katieporter/docs,ksigler7/docs,katieporter/docs,ksigler7/docs,Whatthefoxsays/docs,sendgrid/docs,katieporter/docs,katieporter/docs