Update src/engage/content/sms/template.md

Co-authored-by: rchinn-segment <[email protected]>

Author: pwseg

src/engage/content/sms/template.md

@@ -13,7 +13,7 @@ Use personalized SMS messages to connect with users in real-time, as they reach
 You can choose between two SMS template types:
 
 - **Media**, which contains media and text content
-- **Text**, which contain text content of up to 1600 characters
+- **Text**, which contains text content of up to 1600 characters
 
 ## Build an SMS message template