addressing PR review

Author: tharun634

src/main/java/net/javadiscord/javabot/systems/help/commands/CloseCommand.java

@@ -6,6 +6,7 @@
 /**
  * A simple command that can be used inside reserved help channels to immediately unreserve them,
  * instead of waiting for a timeout.
+ * An alias to /unreserve
  */
 public class CloseCommand extends UnreserveCommand {