Update the README file.
Update the README file.

* Don't mention cmdparse anymore, since it will be pulled in
* Call the command "cobe"
* Add mention of "cobe learn"

DarkMio/cobe,pteichman/cobe,DarkMio/cobe,wodim/cobe-ng,wodim/cobe-ng,meska/cobe,meska/cobe,tiagochiavericosta/cobe,LeMagnesium/cobe,tiagochiavericosta/cobe,LeMagnesium/cobe,pteichman/cobe