Mention extra exports in the documentation

[bartbutenaers]

Dear,

In the example on the readme page, the following statement is being used:

return reject(new errors.GeneralError('Invalid username or password', 401))

That error class is being implemented in errors.js, so I get this exception when running this code snippet:

ReferenceError: errors is not defined

After some digging in this repository, I found that the errors are exported here:

module.exports.ftpErrors = errors;

So my problem was solved by rewriting the statement in the example code like this:

return reject(new FtpServer.ftpErrors.GeneralError('Invalid username or password', 401));

It would be nice if somebody could adjust the readme page to explain how the imports can be used.

Can create a pull request myself, but then it will have to wait until my other PR is merged (because I made those changes on my fork's master branch...).

Thanks!!
Bart

[pSnehanshu]

This line doesn't work in typescript.

return reject(new FtpServer.ftpErrors.GeneralError('Invalid username or password', 401));