Migrate documentation to markdown

Issue:		#33

README.md

@@ -1,6 +1,7 @@
-SSLsplit - transparent and scalable SSL/TLS interception
-Copyright (C) 2009-2014, Daniel Roethlisberger <daniel@roe.ch>
+# SSLsplit - transparent and scalable SSL/TLS interception
+Copyright (C) 2009-2014, [Daniel Roethlisberger](//daniel.roe.ch/).
 http://www.roe.ch/SSLsplit
+[![Build Status](https://travis-ci.org/droe/sslsplit.svg?branch=master)](https://travis-ci.org/droe/sslsplit)
 
 
 ## Overview
@@ -35,10 +36,11 @@ The build depends on GNU make and a POSIX.2 environment in `PATH`.
 The optional unit tests depend on the check library.
 
 SSLsplit currently supports the following operating systems and NAT mechanisms:
+
 -   FreeBSD: pf rdr and divert-to, ipfw fwd, ipfilter rdr
 -   OpenBSD: pf rdr-to and divert-to
 -   Linux: netfilter REDIRECT and TPROXY
--   Mac OS X: ipfw fwd and pf rdr (experimental)
+-   Mac OS X: ipfw fwd and pf rdr
 
 
 ## Installation
@@ -53,6 +55,7 @@ respective locations manually by setting `OPENSSL_BASE`, `LIBEVENT_BASE` and/or
 `CHECK_BASE` to the respective prefixes.
 
 You can override the default install prefix (`/usr/local`) by setting `PREFIX`.
+For more build options see `GNUmakefile`.
 
 
 ## Development
@@ -72,16 +75,16 @@ See the respective source file headers for details.
 
 ## Credits
 
-SSLsplit was inspired by mitm-ssl by Claes M. Nyberg and sslsniff by Moxie
+SSLsplit was inspired by `mitm-ssl` by Claes M. Nyberg and `sslsniff` by Moxie
 Marlinspike, but shares no source code with them.
 
-SSLsplit includes khash.h by Attractive Chaos.
+SSLsplit includes `khash.h` by Attractive Chaos.
 
 
 ## Contributors
 
 The following individuals have contributed to the SSLsplit codebase, in
-chronological order of first contribution, and their Github user names:
+chronological order of first contribution:
 
 -   Daniel Roethlisberger (@droe), main author
 -   Steve Wills (@swills)