Fixed typos in descriptions

Detections/AWSCloudTrail/NRT_AWS_ConsoleLogonWithoutMFA.yaml

@@ -2,7 +2,7 @@ id: 0ee2aafb-4500-4e36-bcb1-e90eec2f0b9b
 name: NRT Login to AWS Management Console without MFA
 description: |
   'Multi-Factor Authentication (MFA) helps you to prevent credential compromise. This alert identifies logins to the AWS Management Console without MFA.
-  You can limit this detection to trigger for adminsitrative accounts if you do not have MFA enabled on all accounts.
+  You can limit this detection to trigger for administrative accounts if you do not have MFA enabled on all accounts.
   This is done by looking at the eventName ConsoleLogin and if the AdditionalEventData field indicates MFA was NOT used
   and the ResponseElements field indicates NOT a Failure. Thereby indicating that a non-MFA login was successful.'
 severity: Low

Detections/SigninLogs/NRT_MFARejectedbyUser.yaml

@@ -1,7 +1,7 @@
 id: 3617d76d-b15e-4c6f-985e-a1dac73c592d
 name: NRT MFA Rejected by User
 description: |
-  'Identifies accurances where a user has rejected an MFA prompt. This could be an indicator that a threat actor has compromised the username and password of this user account and is using it to try and log into the account.
+  'Identifies occurrences where a user has rejected an MFA prompt. This could be an indicator that a threat actor has compromised the username and password of this user account and is using it to try and log into the account.
   Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins'
 severity: Medium
 requiredDataConnectors: