Removed links from preface.
treeb63f170d9c0ad6b3099a9a44ffecc3d6a3121123
-rw-r--r-- 810 Makefile
-rw-r--r-- 5144 basic.txt
-rw-r--r-- 1819 book.css
-rw-r--r-- 9077 branch.txt
-rw-r--r-- 5380 clone.txt
-rw-r--r-- 1353 custom-html.xsl
-rw-r--r-- 425 custom-nochunks.xsl
-rw-r--r-- 6363 drawbacks.txt
-rw-r--r-- 875 find_selflink.js
-rw-r--r-- 7059 grandmaster.txt
-rw-r--r-- 6429 intro.txt
-rwxr-xr-x 991 makeover
-rw-r--r-- 2000 preface.txt
-rw-r--r-- 4911 secrets.txt