Minor wording change on slicing aide-memoire.
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index 2981a78..3e047f3 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -813,7 +813,7 @@
 IndexError: string index out of range
 \end{verbatim}
 
-The best way to remember how slices work is to think of the indices as
+One way to remember how slices work is to think of the indices as
 pointing \emph{between} characters, with the left edge of the first
 character numbered 0.  Then the right edge of the last character of a
 string of \var{n} characters has index \var{n}, for example: