Moved transfer documentation to doc/. Added sections and text to transfer tutorial and reference. Added script for generating html from txt2tags files.

doc/txt2html.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+FILES="darcs.txt transfer-reference.txt transfer-tutorial.txt \
+      transfer.txt"
+
+for f in $FILES; do
+  h=`basename "$f" ".txt"`.html
+  if [ "$f" -nt "$h" ]; then 
+    txt2tags $f
+  else
+    echo "$h is newer than $f, skipping"
+  fi
+done