Doc change

Co-authored-by: Alex Ford <[email protected]>

Author: maikypedia

ruby/ql/src/experimental/cwe-347/EmptyJWTSecret.qhelp

@@ -11,7 +11,7 @@ Applications encoding a JSON Web Token (JWT) may be vulnerable when it's not ver
 
 <recommendation>
 <p>
-Use non-empty nor <code>None</code> values while encoding JWT payloads.
+JSON Web Tokens should be signed using a strong cryptographic algorithm and non-empty secret.
 </p>
 </recommendation>