Documentation could use a little updating

[SergeyTsalkov]

• "Command Option Definition Methods" section is missing the boolean() option
• Documentation has no mention at all of default() option, or examples of it

Great library, though! Just discovered it and am working to figure it out fully!

[nategood]

Thanks! I do accept documentation pull requests ;-). Noticed today I'm also missing docs about the file helper methods.

[nategood]

Updated