Merge pull request AllenDowney#15 from lbordoni/master

AllenDowney · AllenDowney · commit f592fbeab733 · 2016-03-04T15:56:56.000-05:00
Enclose printed strings in single quotes in 5.11
diff --git a/book/book.tex b/book/book.tex
@@ -4091,7 +4091,7 @@ \section{Keyboard input}
 >>> text = input()
 What are you waiting for?
 >>> text
-What are you waiting for?
+'What are you waiting for?'
 \end{verbatim}
 %
 Before getting input from the user, it is a good idea to print a
@@ -4104,7 +4104,7 @@ \section{Keyboard input}
 What...is your name?
 Arthur, King of the Britons!
 >>> name
-Arthur, King of the Britons!
+'Arthur, King of the Britons!'
 \end{verbatim}
 %
 The sequence \verb"\n" at the end of the prompt represents a {\bf
