Updates version in readme
Updates version in readme

Signed-off-by: Christopher Rogers <551f4eee005e3e519560e2feb8988249d292c73e@gmail.com>

developer-devPHP/recurly-client-php,phpdave/recurly-client-php,cgerrior/recurly-client-php,lyrixx/recurly-client-php,developer-devPHP/recurly-client-php