spelling: authentication

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

Author: jsoref

java/ql/src/experimental/Security/CWE/CWE-327/UnsafeTlsVersion.qhelp

@@ -3,7 +3,7 @@
 
 <overview>
 <p>Transport Layer Security (TLS) provides a number of security features such as 
-confidentiality, integrity, replay prevention and authenticatin. 
+confidentiality, integrity, replay prevention and authentication. 
 There are several versions of TLS protocols. The latest is TLS 1.3.
 Unfortunately, older versions were found to be vulnerable to a number of attacks.</p>