Restructure the documentation.
1. Split into two parts - Tutorial & Reference.
2. Reference is split into Modeling and Solving.
3. Build instructions now mention CXSparse.
Change-Id: Id67fa1134f3fc2b2cea9ccf2f32d5b16d435ba6e
diff --git a/docs/faq.tex b/docs/faq.tex
index f187245..401439f 100644
--- a/docs/faq.tex
+++ b/docs/faq.tex
@@ -1,8 +1,11 @@
%!TEX root = ceres.tex
\chapter{Frequently Asked Questions}
\label{chapter:faq}
+\newcomment{Question}
+\newcomment{Answer}
\commentsoff{Question}
\commentsoff{Answer}
+
\begin{enumerate}
\item \begin{Question}
Why does Ceres use blocks (ParameterBlocks and ResidualBlocks) ?
