Apply suggestions from code review more precise help text

Author: timoles

java/ql/src/experimental/Security/CWE/CWE-665/InsecureRmiJmxEnvironmentConfiguration.qhelp

@@ -61,7 +61,7 @@ For this reason an initialization with a <code>null</code> environment is also v
 <references>
 <li>Deserialization of arbitrary objects could lead to remote code execution as described following: <a href="https://owasp.org/www-community/vulnerabilities/Deserialization_of_untrusted_data">OWASP Deserialization of untrusted data</a>.</li>
 <li>Issue discovered in Tomcat (CVE-2016-8735): <a href="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8735">OWASP ESAPI</a>.</li>
-<li>Oracle release notes fixing the issue: <a href="https://www.oracle.com/java/technologies/javase/8u91-relnotes.html">Rlease Notes</a>.</li>
+<li><a href="https://www.oracle.com/java/technologies/javase/8u91-relnotes.html#bugfixes-8u91">Oracle release notes</a>: New attribute for JMX RMI JRMP servers.</li>
 <li>Java 10 API specification for <a href="https://docs.oracle.com/javase/10/docs/api/javax/management/remote/rmi/RMIConnectorServer.html#CREDENTIALS_FILTER_PATTERN">RMIConnectorServer.CREDENTIALS_FILTER_PATTERN</a></li>
 <li>The Java API specification for <a href="https://docs.oracle.com/javase/10/docs/api/javax/management/remote/rmi/RMIConnectorServer.html#CREDENTIAL_TYPES">RMIConnectorServer.CREDENTIAL_TYPES</a>. Please note that this field is deprecated since Java 10.</li>
 </references>