Inaccurate/confusing description for column :primary_key

[dteoh]

In the docs for Sequel::Schema::CreateTableGenerator#column :primary_key option:

"This should not be used if you have a single, nonautoincrementing primary key column (use the primary_key method in that case)."

This is the opposite, you should not use it if you have an autoincrement PK column.

I think maybe rewriting this to when you can use the option would be easier to read?

"This should be used if you do not want to use an auto-incrementing PK column."

[jeremyevans]

Thanks for catching that. I'll fix the documentation shortly.