[PATCH -perfbook v4] howto: make ref to git archive explicit

From: Zhouyi Zhou <[email protected]>

Make "git archive" in answer to Quick Quiz 1.3 more explicit, so that reader can easily know where
"git archive" is.

Suggested-by: Akira Yokosawa <[email protected]>
Signed-off-by: Zhouyi Zhou<[email protected]>
---
Hi Akira

Thank you for your valuable suggestions and guidances, I learned a lot
during this process ;-)

And I invoke make -j 20 in my ubuntu 22.04, everything works great!

Our editor Yunjing Li is still too modest to provide her email, sorry.

Thanks for your patient and hard work.

Thanks
Zhouyi
--
 howto/howto.tex | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/howto/howto.tex b/howto/howto.tex
index 55270cba..8d678644 100644
--- a/howto/howto.tex
+++ b/howto/howto.tex
@@ -226,7 +226,9 @@ Here are a few possible strategies:
 	only a blank sheet of paper.
 \item	If you find the Quick Quizzes distracting but impossible
 	to ignore, you can always clone the \LaTeX{} source for
-	this book from the git archive.
+	this book from the git archive.\footnote{
+		See \cref{sec:howto:Whose Book Is This?}
+		for instructions to do this.}
 	You can then run the command \co{make nq}, which will
 	produce a \co{perfbook-nq.pdf}.
 	This PDF contains unobtrusive boxed tags where the Quick Quizzes
-- 
2.34.1