Add LTI Tool to the Course:
- Login to D2L website.
 - Navigate to Settings->Course Management.
 - Click Templates.
 - Select the course template you created.
 - The course page will be displayed.
 - Select the folder name you created under Content Browser.
 - Click Create Some Content.
 - Click Add Existing Activities.
 - Select External Learning Tools from the dropdown .
 - Select your LTI Link from the List.
 - LTI will get added to the course.
 - Click the LTI link to launch the tool.