convert readme to markdown. add travis status icon.

README.md

@@ -1,4 +1,8 @@
-TclCurl - get a URL with FTP, TELNET, LDAP, DICT, FILE, HTTP or HTTPS syntax.
+[![Build Status](https://travis-ci.org/flightaware/tclcurl-fa.svg?branch=master)](https://travis-ci.org/flightaware/tclcurl-fa)
+
+# TclCurl - get a URL with FTP, TELNET, LDAP, DICT, FILE, HTTP or HTTPS syntax.
+
+## Introduction
 
 TclCurl gives the Tcl programmer access to the facilities of libcurl, for more information
 about what libcurl is capable of check http://curl.haxx.se.
@@ -15,7 +19,7 @@ the make of tcl for most of its configuration parameters.
 
 There is another README to explain how to compile in Windows.
 
-Troubleshooting
+## Troubleshooting
 
 If you are running Red Hat or Fedora and you are compiling from source,
 make sure the directory '/usr/local/lib' is listed in '/etc/ld.so.conf',
@@ -26,7 +30,7 @@ is probably because there is no 'tclConfig.sh' file, maybe you need
 to install a 'tcl-devel' package or maybe it would be a good idea
 to download the latest version, and install that.
 
-Usage:
+## Usage
 
     package require TclCurl
 
@@ -52,8 +56,13 @@ Usage:
 
 Check the man page for details.
 
+## Authors
 
 Written by:  Andres Garcia (fandom@telefonica.net)
 
+Cloned from a repo once at:  https://bitbucket.org/smh377/tclcurl/
+
+## License
+
 Use at your own risk.  No support.
 BSD like license, check 'license.terms' for details.