update database.yml & read me

Signed-off-by: Robert Mirabito <robert.mirabito@gmail.com>
add basic validation example

Signed-off-by: Robert Mirabito <robert.mirabito@gmail.com>
add 3 recipes to the seed file & add additional sample user

Signed-off-by: Robert Mirabito <robert.mirabito@gmail.com>