Link howto documents from the main git.txt documentation.

Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/install-webdoc.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+T="$1"
+
+for h in *.html howto/*.txt
+do
+	diff -u "$T/$h" "$h" || {
+		echo >&2 "# install $h $T/$h"
+		rm -f "$T/$h"
+		mkdir -p `dirname "$T/$h"`
+		cp "$h" "$T/$h"
+	}
+done
+strip_leading=`echo "$T/" | sed -e 's|.|.|g'`
+for th in "$T"/*.html "$T"/howto/*.txt
+do
+	h=`expr "$th" : "$strip_leading"'\(.*\)'`
+	case "$h" in
+	index.html) continue ;;
+	esac
+	test -f "$h" && continue
+	echo >&2 "# rm -f $th"
+	rm -f "$th"
+done
+ln -sf git.html "$T/index.html"