Update language-support.md

Author: laujan

articles/ai-services/translator/solutions/translator-pro/language-support.md

@@ -50,6 +50,7 @@ Microsoft Translator Pro provides real-time multilingual speech-to-speech suppor
 | Danish (Denmark) | ✔️ | ✔️|
 | Dutch (Belgium) | ✔️ |  |
 | Dutch (Netherlands) | ✔️ | ✔️|
+| English (United States) | ✔️ | ✔️|
 | Estonian (Estonia) | ✔️ | ✔️|
 | Filipino (Philippines) | ✔️ |  |
 | Finnish (Finland) | ✔️ |  |
@@ -132,4 +133,4 @@ Microsoft Translator Pro provides real-time multilingual speech-to-speech suppor
 | Uzbek (Latin, Uzbekistan) | ✔️ |  |
 | Vietnamese (Vietnam) | ✔️ |  |
 | Welsh (United Kingdom) | ✔️ |  |
-| isiZulu (South Africa) | ✔️ |  |
+| isiZulu (South Africa) | ✔️ |  |