add business framing

windows/security/threat-protection/microsoft-defender-atp/deployment-phases.md

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 - [Microsoft Defender for Endpoint](https://go.microsoft.com/fwlink/p/?linkid=2146631)
 
 
+Protect your enterprise environment by deploying Microsoft Defender for Endpoint. Microsoft Defender for Endpoint is a unified platform that helps you implement preventative protection, leverage post-breach detection, use automated investigation, and respond to sophisticated threats.
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 There are three phases in deploying Defender for Endpoint:
 
 |Phase | Description |