Update articles/sentinel/understand-threat-intelligence.md

PR review: Added period at the end of the sentence.

Author: PMEds28

articles/sentinel/understand-threat-intelligence.md

@@ -126,7 +126,7 @@ For more information, see [Connect Microsoft Sentinel to STIX/TAXII threat intel
 
 ## Create and manage threat intelligence
 
-Threat intelligence powered by Microsoft Sentinel is managed next to Microsoft Defender Threat Intelligence (MDTI) and Threat Analytics in the Microsoft Defender portal
+Threat intelligence powered by Microsoft Sentinel is managed next to Microsoft Defender Threat Intelligence (MDTI) and Threat Analytics in the Microsoft Defender portal.
 
 :::image type="content" source="media/understand-threat-intelligence/intel-management-defender-portal.png" alt-text="Screenshot showing intel management page in the Defender portal." lightbox="media/understand-threat-intelligence/intel-management-defender-portal.png":::