Update release-notes-tts.md

Author: sally-baolian

articles/ai-services/speech-service/includes/release-notes/release-notes-tts.md

@@ -11,7 +11,7 @@ ms.custom: references_regions
 
 #### Text to speech avatar
 
-- You can now set a static background image for your avatars. To utilize this feature, simply use the `avatarConfig.backgroundImage` property and specify a URL pointing to the desired image. For detials, refer to [How to edit the background](../../text-to-speech-avatar/batch-synthesis-avatar-properties.md#how-to-edit-the-background)
+- You can now set a static background image for your avatars. To utilize this feature, simply use the `avatarConfig.backgroundImage` property and specify a URL pointing to the desired image. For detials, refer to [How to edit the background](../../text-to-speech-avatar/batch-synthesis-avatar-properties.md#how-to-edit-the-background).
 
 ### March 2024 release