added '**kw' to parameter list syntax
diff --git a/Doc/ref7.tex b/Doc/ref7.tex
index 89fa6ed..9bce121 100644
--- a/Doc/ref7.tex
+++ b/Doc/ref7.tex
@@ -275,7 +275,9 @@
\begin{verbatim}
funcdef: "def" funcname "(" [parameter_list] ")" ":" suite
-parameter_list: (defparameter ",")* ("*" identifier | defparameter [","])
+parameter_list: (defparameter ",")* ("*" identifier [, "**" identifier]
+ | "**" identifier
+ | defparameter [","])
defparameter: parameter ["=" condition]
sublist: parameter ("," parameter)* [","]
parameter: identifier | "(" sublist ")"