Getting started you'll need to look through the raw data you've queried; You've been tasked to fomart for presentation purposes and future queries.You'll need to start looking over the data within each event. Based on the previous query :
SecurityDetection
| where TimeGenerated > ago(31d)
| where Computer == "ContosoAppSrv1"
You should see the following data:
In order to format the data you'll need to use the "Project" operator
Examples:
SecurityDetection
| where TimeGenerated > ago(31d)
| where Computer == "ContosoAppSrv1"
| project AccountsSeen,
AlertSeverity,
AlertTitle,
TimeGenerated,
Description,
RemediationSteps