fix: re-normalize warning

Author: valeriansaliou

README.md

@@ -16,7 +16,6 @@ Licensing information can be found in the [LICENSE.md](./LICENSE.md) document.
 
 ## :fire: Report A Vulnerability
 
-If you find a vulnerability in any Prose System, you are more than welcome to report it directly to Prose Security by sending an encrypted email to [[email protected]](mailto:[email protected]). Do not report vulnerabilities in public GitHub issues, as they may be exploited by malicious people to target production systems running an unpatched version.
+If you find a vulnerability in any Prose system, you are more than welcome to report it directly to Prose Security by sending an encrypted email to [[email protected]](mailto:[email protected]). Do not report vulnerabilities in public GitHub issues, as they may be exploited by malicious people to target production systems running an unpatched version.
 
-> [!WARNING]
-> **You MUST encrypt your email using Prose Security GPG public key: [:key:57A5B260.pub.asc](https://files.prose.org/public/keys/gpg/57A5B260.pub.asc).**
+**:warning: You must encrypt your email using Prose Security GPG public key: [:key:57A5B260.pub.asc](https://files.prose.org/public/keys/gpg/57A5B260.pub.asc).**