WDATP/compatibility: typo & whitespace correction

Description:

As reported in ticket #6391 (Two "and" words), 
there is one occurrence of a duplicate "and"
in this page. This PR will correct that typo.

Thanks to mattwailes for reporting this.

Changes proposed:
- Remove one unexpected "and" from a sentence
- Remove trailing whitespace from all lines
- Add MarkDown indent marker compatibility spacing

Ticket closure or reference:

Closes #6391

windows/security/threat-protection/windows-defender-antivirus/windows-defender-antivirus-compatibility.md

@@ -26,7 +26,7 @@ manager: dansimp
 
 Windows Defender Antivirus is automatically enabled and installed on endpoints and devices that are running Windows 10. But what happens when another antivirus/antimalware solution is used? It depends on whether you're using [Microsoft Defender ATP](https://docs.microsoft.com/windows/security/threat-protection) together with your antivirus protection.
 - When endpoints and devices are protected with a non-Microsoft antivirus/antimalware solution, and Microsoft Defender ATP is not used, Windows Defender Antivirus automatically goes into disabled mode.
-- If your organization is using Microsoft Defender Advanced Threat Protection (Microsoft Defender ATP) together with a non-Microsoft antivirus/antimalware solution, then Windows Defender Antivirus automatically goes into passive mode. (Real time protection and and threats are not remediated by Windows Defender Antivirus.) 
+- If your organization is using Microsoft Defender Advanced Threat Protection (Microsoft Defender ATP) together with a non-Microsoft antivirus/antimalware solution, then Windows Defender Antivirus automatically goes into passive mode. (Real time protection and threats are not remediated by Windows Defender Antivirus.)
 - If your organization is using Microsoft Defender ATP together with a non-Microsoft antivirus/antimalware solution, and you have [shadow protection (currently in private preview)](https://docs.microsoft.com/windows/security/threat-protection/windows-defender-antivirus/shadow-protection), then Windows Defender Antivirus runs in the background and blocks/remediates malicious items that are detected, such as during a post-breach attack.
 
 ## Antivirus and Microsoft Defender ATP
@@ -54,12 +54,12 @@ If you are Using Windows Server, version 1803 and Windows 2019, you can enable p
 
 See [Windows Defender Antivirus on Windows Server 2016 and 2019](windows-defender-antivirus-on-windows-server-2016.md) for key differences and management options for Windows Server installations.
 
->[!IMPORTANT]
+> [!IMPORTANT]
->Windows Defender Antivirus is only available on endpoints running Windows 10, Windows Server 2016, and Windows Server 2019.  
+> Windows Defender Antivirus is only available on endpoints running Windows 10, Windows Server 2016, and Windows Server 2019.
 >
->In Windows 8.1 and Windows Server 2012, enterprise-level endpoint antivirus protection is offered as [System Center Endpoint Protection](https://technet.microsoft.com/library/hh508760.aspx), which is managed through Microsoft Endpoint Configuration Manager.  
+> In Windows 8.1 and Windows Server 2012, enterprise-level endpoint antivirus protection is offered as [System Center Endpoint Protection](https://technet.microsoft.com/library/hh508760.aspx), which is managed through Microsoft Endpoint Configuration Manager.
 >
->Windows Defender is also offered for [consumer devices on Windows 8.1 and Windows Server 2012](https://technet.microsoft.com/library/dn344918#BKMK_WindowsDefender), although it does not provide enterprise-level management (or an interface on Windows Server 2012 Server Core installations). 
+> Windows Defender is also offered for [consumer devices on Windows 8.1 and Windows Server 2012](https://technet.microsoft.com/library/dn344918#BKMK_WindowsDefender), although it does not provide enterprise-level management (or an interface on Windows Server 2012 Server Core installations).
 
 ## Functionality and features available in each state
 
@@ -87,8 +87,8 @@ In passive and automatic disabled mode, you can still [manage updates for Window
 
 If you uninstall the other product, and choose to use Windows Defender Antivirus to provide protection to your endpoints, Windows Defender Antivirus will automatically return to its normal active mode.
 
->[!WARNING]
+> [!WARNING]
->You should not attempt to disable, stop, or modify any of the associated services used by Windows Defender Antivirus, Microsoft Defender ATP, or the Windows Security app. This includes the *wscsvc*, *SecurityHealthService*, *MsSense*, *Sense*, *WinDefend*, or *MsMpEng* services and process. Manually modifying these services can cause severe instability on your endpoints and open your network to infections and attacks. It can also cause problems when using third-party antivirus apps and how their information is displayed in the [Windows Security app](windows-defender-security-center-antivirus.md).
+> You should not attempt to disable, stop, or modify any of the associated services used by Windows Defender Antivirus, Microsoft Defender ATP, or the Windows Security app. This includes the *wscsvc*, *SecurityHealthService*, *MsSense*, *Sense*, *WinDefend*, or *MsMpEng* services and process. Manually modifying these services can cause severe instability on your endpoints and open your network to infections and attacks. It can also cause problems when using third-party antivirus apps and how their information is displayed in the [Windows Security app](windows-defender-security-center-antivirus.md).
 
 
 ## Related topics