Hi! I cleaned up your code for you!
Added express example to readme
Allow up to 7 digits for the shorturl ending
Update allows for ~ 3.5 trillion unique short urls compared to the 100k previous ones. Ensures it's at least a 3 digit ending, with a maximum of 7 digits possible.
…hort, fixed in package as well as a doc minor improvement
…2.2.3 since 2.2.2 has a buffer issue