rephrase the blank response body note

Author: halkazwini

articles/web-application-firewall/afds/waf-front-door-configure-custom-response-code.md

@@ -104,7 +104,7 @@ Update-AzFrontDoorFireWallPolicy `
 ---
 
 > [!NOTE]
-> If you leave the block response body blank, the WAF will respond 403 (forbidden) on normal WAF blocks and will respond 429 (too many requests) on rate limit blocks. 
+> If you leave the block response body blank, the WAF returns a *403 Forbidden* response for normal WAF blocks and a *429 Too many requests* for rate limit blocks. 
 
 ::: zone pivot="front-door-standard-premium"