Update v3-region-availability.md

Changed China East 2 to China East region that is not available for TA API v3

Author: ashly1yeo

articles/cognitive-services/text-analytics/includes/v3-region-availability.md

@@ -12,6 +12,6 @@ ms.author: aahi
 ---
 
 > [!IMPORTANT]
-> Text Analytics API v3 is not available in the following regions: Central India, UAE North, South Africa North, China North 2, China East 2.
+> Text Analytics API v3 is not available in the following regions: Central India, UAE North, South Africa North, China North 2, China East.