Update README to markdown syntax
Update README to markdown syntax

zephyrdeveloper/play2-elasticsearch,jtammen/play2-elasticsearch,CedricGatay/play2-elasticsearch-jest,carlosFattor/play2-elasticsearch,carlosFattor/play2-elasticsearch,7thsense/play2-elasticsearch,cleverage/play2-elasticsearch,cleverage/play2-elasticsearch,zephyrdeveloper/play2-elasticsearch,7thsense/play2-elasticsearch,jtammen/play2-elasticsearch