Convert README to markdown format for better readability.

README.txt → README.txt.md

 About
------
+=====
 
-Flot is a Javascript plotting library for jQuery. Read more at the
-website:
-
-  http://code.google.com/p/flot/
+Flot is a Javascript plotting library for jQuery. Read more at
+[the website.](http://code.google.com/p/flot/)
 
 Take a look at the examples linked from above, they should give a good
 impression of what Flot can do and the source code of the examples is
@@ -23,7 +21,8 @@ For support for Internet Explorer < 9, you can use Excanvas, a canvas
 emulator; this is used in the examples bundled with Flot. You just
 include the excanvas script like this:
 
-  <!--[if lte IE 8]><script language="javascript" type="text/javascript" src="excanvas.min.js"></script><![endif]-->
+    <!--[if lte IE 8]><script language="javascript" type="text/javascript"
+    src="excanvas.min.js"></script><![endif]-->
 
 If it's not working on your development IE 6.0, check that it has
 support for VML which Excanvas is relying on. It appears that some