converted README to Markdown
converted README to Markdown

eriser/LibXtract,kecsap/LibXtract,caseybasichis/LibXtract,caseybasichis/LibXtract,jamiebullock/LibXtract,kecsap/LibXtract,eriser/LibXtract,jamiebullock/LibXtract,jamiebullock/LibXtract,caseybasichis/LibXtract,kecsap/LibXtract,eriser/LibXtract