add storage to list of tags in galaxy.yml

[Jake Jackson]

in the galaxy.yml file, there is a tag field. Automation Hub builds a few use specific views, adding storage to this list will help display this collection when users select it from the tag drop down.

[Chebrolu Bala Sai Harika]

Hi @thedoubl3j ,

Thanks for your suggestion. Took care of it and merged accordingly to master branch.