First of all, you need to create a new directory in Interface\AddOns. The name of this directory is kind of important, as it is what other AddOns use to refer to your AddOn (in dependencies). Therefore, using version numbers in your AddOn directory name can be a bad idea; you will run the risk of having other AddOns "break" when you change the version. This will probably lead to people either not depending on your AddOn or, worse, that they'll keep using an old version. Major version numbers as part of AddOn directory names might work, though.