Update readme to include licenses of libraries used.
Update readme to include licenses of libraries used.

eric-seekas/sequelpro,Jellyfrog/sequelpro,CoolSwitcher/sequelpro,treejames/sequelpro,abhibeckert/sequelpro,treejames/sequelpro,josegonzalez/sequelpro,dnl-jst/sequelpro,kaneshin/sequelpro,CoolSwitcher/sequelpro,kaneshin/sequelpro,abhibeckert/sequelpro,dnl-jst/sequelpro,Jellyfrog/sequelpro,josegonzalez/sequelpro,CoolSwitcher/sequelpro,chenbk85/sequelpro,leichunxin/sequelpro,kaneshin/sequelpro,treejames/sequelpro,CoolSwitcher/sequelpro,eric-seekas/sequelpro,chenbk85/sequelpro,chenbk85/sequelpro,eric-seekas/sequelpro,kaneshin/sequelpro,abhibeckert/sequelpro,leichunxin/sequelpro,chenbk85/sequelpro,leichunxin/sequelpro,dnl-jst/sequelpro,abhibeckert/sequelpro,treejames/sequelpro,Jellyfrog/sequelpro,eric-seekas/sequelpro,josegonzalez/sequelpro,dnl-jst/sequelpro,Jellyfrog/sequelpro,leichunxin/sequelpro,josegonzalez/sequelpro