Merge pull request #97 from 0xv1n/public

Update advanced-hunting-aadsignineventsbeta-table.md

Author: schmurky

defender-xdr/advanced-hunting-aadsignineventsbeta-table.md

@@ -83,6 +83,7 @@ Use this reference to construct queries that return information from the table.
 |`NetworkLocationDetails`|`string`|Network location details of the authentication processor of the sign-in event|
 |`RequestId`|`string`|Unique identifier of the request|
 |`ReportId`|`string`|Unique identifier for the event|
+|`EndpointCall`|`string`|Information about the Microsoft Entra ID endpoint that the request was sent to and the type of request sent during sign in.|
 
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