readme: fix syntax error in example
readme: fix syntax error in example

jskirst/sftp-to-http,mafintosh/ssh2,laktek/ssh2-chromeify,ianscrivener/ssh2,mafintosh/ssh2,laktek/ssh2-chromeify,Student007/ssh2,mscdex/ssh2,Drooids/ssh2,Drooids/ssh2,ianscrivener/ssh2,onilabs/ssh2,ArielAbreu/ssh2,jskirst/sftp-to-http,onilabs/ssh2,mscdex/ssh2,Student007/ssh2,mafintosh/ssh2,laktek/ssh2-chromeify,mscdex/ssh2,ArielAbreu/ssh2,mcanthony/ssh2,24hr/ssh2,mscdex/ssh2,mcanthony/ssh2,24hr/ssh2