Update quickstart-protected-material.md

Author: Sayaka-4987

articles/ai-services/content-safety/quickstart-protected-material.md

@@ -37,7 +37,7 @@ curl --location --request POST '<endpoint>/contentsafety/text:detectProtectedMat
 --header 'Ocp-Apim-Subscription-Key: <your_subscription_key>' \
 --header 'Content-Type: application/json' \
 --data-raw '{
-  "text": "to everyone, the best things in life are free. the stars belong to everyone, they gleam there for you and me. the flowers in spring, the robins that sing, the sunbeams that shine, they\'re yours, they\'re mine. and love can come to everyone, the best things in life are"
+  "text": "to everyone, the best things in life are free. the stars belong to everyone, they gleam there for you and me. the flowers in spring, the robins that sing, the sunbeams that shine, they're yours, they're mine. and love can come to everyone, the best things in life are"
 }'
 ```
 The below fields must be included in the url: