SF bug #1067023: A small typo

Make a minor clarification between "written" and "displayed".

Doc/tut/tut.tex

@@ -464,8 +464,8 @@ or C); parentheses can be used for grouping.  For example:
 -3
 \end{verbatim}
 
-Like in C, the equal sign (\character{=}) is used to assign a value to a
-variable.  The value of an assignment is not written:
+The equal sign (\character{=}) is used to assign a value to a variable.
+Afterwards, no result is displayed before the next interactive prompt:
 
 \begin{verbatim}
 >>> width = 20