...
After installing Google Drive Gadget and adding the gadget to your dashboard or ticket you'll be presented with a screen that asks for a link.
...
To get a link that displays an editable version of the document you can simply copy the URL from your browser address bar of the Google document you want to embed.
...
Return to your Jira dashboard and paste the link into the Link field and click Save
...
NOTE: The document will only show if the current user is logged into their Google account and if they have been given rights to view and/or edit the document in question.
...
After installing Google Drive Gadget and adding the gadget to your dashboard you'll be presented with a screen that asks for a link.
...
To get a link that displays a non-editable document without the Google Docs chrome displaying, first go to the Google Doc you want to embed.
Go to File → Publish to the Web
...
In the resulting modal dialog click the Publish button
...
Copy the link that appears within the popup
...
Return to your Jira dashboard and paste the link into the Link field and click Save
...
NOTE: This will embed the document into the gadget without displaying the Google Doc chrome but it also makes your document publicly accessible to anyone who knows the link to the file.