Fix ThreadContext javadoc about inheritance
@@ -41,9 +41,10 @@ import org.apache.logging.log4j.util.PropertiesUtil;
/**
* The ThreadContext allows applications to store information either in a Map or a Stack.
* <p>
- * <b><em>The MDC is managed on a per thread basis</em></b>. A child thread automatically inherits a <em>copy</em> of
- * the mapped diagnostic context of its parent.
+ * <b><em>The MDC is managed on a per thread basis</em></b>. To enable automatic inheritance of <i>copies</i> of the MDC
+ * to newly created threads, enable the {@value DefaultThreadContextMap#INHERITABLE_MAP} Log4j system property.
* </p>
+ * @see <a href="https://logging.apache.org/log4j/2.x/manual/thread-context.html">Thread Context Manual</a>
*/
public final class ThreadContext {
