Update validate-antimalware.md

Author: denisebmsft

defender-endpoint/validate-antimalware.md

@@ -1,6 +1,6 @@
 ---
 title: Antivirus detection test for verifying device's onboarding and reporting services
-description: AV detection test to verify the device's proper onboarding and reporting to the service.
+description: Run an antivirus detection test to verify the device's proper onboarding and reporting to the service.
 ms.service: defender-endpoint
 ms.subservice: reference
 ms.author: ewalsh
@@ -73,7 +73,7 @@ You can run an antivirus detection test to verify that the device is properly on
    curl -o ~/Downloads/eicar.com.txt https://secure.eicar.org/eicar.com.txt
    ```
 
-3. Verify that the file has been quarantined by Defender for Endpoint.** Run the following command to list all detected threats:
+3. Verify that the file is quarantined. Run the following command to list all detected threats:
 
    ```
    mdatp threat list