update books

This commit is contained in:
Steve Klabnik 2018-11-20 07:40:31 -05:00
parent 7a0cef74a8
commit 240a55ce50
4 changed files with 4 additions and 4 deletions

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Subproject commit b9fb838054b8441223c22eeae5b6d8e498071cd0
Subproject commit 60077efda319c95a89fe39609803c5433567adbf

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Subproject commit bc342a475c09b6df8004d518382e6d5b6bcb49f7
Subproject commit 2ce92beabb912d417a7314d6da83ac9b50dc2afb