broken link (#3889)

* Fix plot look when using eval and add query to choices (#3881)

* convert index to datetime and update choices

* uncomment economy integration test

* fix treasury concat bug

* fix datasets concat on duplciates

* broken link

due to quandl.com redirecting to nasdaq.com, for the link to work and get the appropiate API key you need to remove the period at the end of this link...

Co-authored-by: montezdesousa <79287829+montezdesousa@users.noreply.github.com>
Co-authored-by: james <jmaslek11@gmail.com>