Added readme file

vfs/README

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+Hi!
+
+I'm midnight commander's vfs layer. Before you start hacking me,
+please read this file. I'm integral part of midnight commander, but I
+try to go out and live my life myself as a shared library, too. That
+means that I should try to use as little functions from midnight as
+possible (so I'm tiny, nice and people like me), that I should not
+pollute namespace by unneccessary symbols (so I do not crash fellow
+programs) and that I should have a clean interface between myself and
+midnight.
+
+Because I'm rather close to midnight, try to:
+
+* Keep updating ChangeLog file.
+
+* Keep the indentation as the rest of the code. Following could help
+you with your friend emacs:
+
+(defun mc-c-mode ()
+	"C mode with adjusted defaults for use with the Midnight commander."
+	(interactive)
+	(c-mode)
+	(c-set-style "K&R")
+	(setq	c-indent-level 4
+		c-continued-statement-offset 4
+		c-brace-offset 0
+		c-argdecl-indent 4
+		c-label-offset -4
+		c-brace-imaginary-offset 0
+		c-continued-brace-offset 0
+		c-tab-always-indent nil
+		c-basic-offset 4
+		tab-width 8
+		comment-column 60))
+
+(setq auto-mode-alist (cons '(".*/mc/.*\\.[ch]$" . mc-c-mode)
+                       auto-mode-alist))
+
+And because I'm trying to live life on my own as libvfs.so, try to:
+
+* Make sure all exported symbols are defined in vfs.h and begin with
+'vfs_'.
+
+* Do not make any references from midnight into modules like tar. It
+would probably pollute namespace and midnight would depend on concrete
+configuration of libvfs. mc_setctl() and mc_ctl() are your
+friends. (And mine too :-).
+
+							 Pavel Machek
+							 pavel@ucw.cz
+
+PS: If you'd like to use my features in whole operating system, you
+might want to link me to rpc.nfsd. On
+http://atrey.karlin.mff.cuni.cz/~pavel/podfuk/podfuk.html you'll find
+how to do it.
+
+PPS: I have a friend, shared library called avfs, which is LD_PRELOAD
+capable. You can reach her at http://www.inf.bme.hu/~mszeredi/avfs.