I just heard about a great Google Docs Add-On called "Link Chooser"! (Thanks Kelly Fitzgerald & Michael Fricano II!)
If you find yourself inserting lots of links to items in your Google Drive when working in Docs - this add-on is going to make you very happy!
Take a look...
You can get link chooser here: https://chrome.google.com/webstore/detail/link-chooser/allpohkojhmijlofbkbfcecifibnbadk?utm_source=permalink