minor fix text

Author: fb1337

src/content/changelog/waf/2025-09-08-waf-release.mdx

@@ -53,7 +53,7 @@ Administrators are strongly advised to apply vendor patches immediately, remove
       <td>Command Injection - Common Attack Commands Args</td>
       <td>Log</td>
       <td>Blocked</td>
-      <td>This rule is merged into the original rule "Command Injection - Common Attack Commands" (ID: <RuleID id="89557ce9b26e4d4dbf29e90c28345b9b" />)</td>
+      <td>This rule has been merged into the original rule "Command Injection - Common Attack Commands" (ID: <RuleID id="89557ce9b26e4d4dbf29e90c28345b9b" />) for New WAF customers only.</td>
     </tr>
     <tr>
       <td>Cloudflare Managed Ruleset</td>