[twenty-years] Add skeleton chapters for source control and planet.gnome

[Federico Mena Quintero <federico src gnome org>]

commit cc124a99839cf7014321fa5e7ae375d6babcb958
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Apr 27 08:24:32 2017 -0500

    Add skeleton chapters for source control and planet.gnome

 book/main.tex |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/book/main.tex b/book/main.tex
index 03982b9..db9adf3 100644
--- a/book/main.tex
+++ b/book/main.tex
@@ -60,6 +60,10 @@
 
 \input{projects-faded.tex}
 
+\part{History of our Infrastructure}
+
+\input{cvs-svn-git.tex}
+
 \part{Companies}
 
 \input{rhad-labs.tex}
@@ -84,6 +88,7 @@
 
 \part{Bits of \GNOME\ Culture}
 \input{swedish.tex}
+\input{planet.tex}
 \input{pants.tex}
 \input{planet.tex}