[gnome-university] [c101] Add some TODOs for chapter2.

[Christian Hergert <chergert src gnome org>]

commit 79cd4785a855bdec43dcc7071e7a914d1430bb43
Author: Christian Hergert <christian hergert me>
Date:   Sun Nov 4 17:30:24 2012 -0800

    [c101] Add some TODOs for chapter2.

 c101/tex/chapter2.tex |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)
---
diff --git a/c101/tex/chapter2.tex b/c101/tex/chapter2.tex
index 933f0d3..0cd2153 100644
--- a/c101/tex/chapter2.tex
+++ b/c101/tex/chapter2.tex
@@ -87,6 +87,13 @@ int b /* or in between */ = 42;
 
 \section{Arithmetic}
 
+TODO
+
+\begin{itemize}
+\item arithmetic and operators.
+\item order of operations
+\end{itemize}
+
 \begin{code}{arithmetic.c}
 #include <stdio.h>
 
@@ -115,8 +122,28 @@ main (int   argc,
 
 \section{printf() and scanf()}
 
+TODO
+
+\begin{itemize}
+\item what is printf doing
+\item what is scanf doing
+\item what is a format character
+\end{itemize}
+
 \section{Questions}
 
+TODO
+
+\begin{itemize}
+\item arithmetic questions by following order of operations
+\end{itemize}
+
 \section{Exercises}
 
+TODO
+
+\begin{itemize}
+\item first part of calculator, reading input and performing multiplication.
+\end{itemize}
+
 \end{document}