fixed the canvas hw6 link

assignments/index.md

@@ -24,7 +24,7 @@ questions or run into issue, please contact the course staff.
 | HW3: [Web/App Access UARS](website.html)                                     | [Canvas HW3]({{site.canvas}}/assignments/8443528) | 10/16    |
 | HW4: [Web/App Access Report](website-report.html)                            | [Canvas HW4]({{site.canvas}}/assignments/8712208) | 10/21    |
 | HW5: [Post GUI Accessibility](technology-review.html)                        | [Canvas HW5]({{site.canvas}}/assignments/8712482) | 10/30    |
-| HW6: [Post GUI Accessibility Implementation](technology-implementation.html) | [Canvas HW6]({{site.canvas}}/assignments/8712492  | 11/6     |
+| HW6: [Post GUI Accessibility Implementation](technology-implementation.html) | [Canvas HW6]({{site.canvas}}/assignments/8712492)  | 11/6     |
 | HW7: [Final Project Proposal](project-proposals.html)                        | TBD                                               | TBD      |
 | HW8: [Final Project Checkpoint](project-checkpoint.html)                    | TBD                                               | TBD      |
 | HW9: [Final Project Presentation](project-final.html)                       | TBD                                               | TBD      |