Added link to next assignment

assignments/index.md

@@ -20,7 +20,7 @@ questions or run into issue, please contact the course staff.
 | HW1: [Disability Justice]({{site.baseurl}}/assignments/disabilityjustice.html)       |[EdStem discussion post](https://edstem.org/us/courses/31170/discussion/new/)| 1/9 |
 | HW2: [Web/App Access Assessment]({{site.baseurl}}/assignments/website.html)          |[Canvas Link](https://canvas.uw.edu/courses/1619674/assignments/7840155)| 1/23 |
 | HW3: [Finding AT around us]({{site.baseurl}}/assignments/finding-accessibility.html) |[Canvas Link](https://canvas.uw.edu/courses/1619674/assignments/7827848)| 1/31 |
-| HW4: 2nd Wave Accessibility Writeup                                                  | TBD         |
+| HW4: [2nd Wave Accessibility Writeup]({{site.baseurl}}/assignments/technology-review.html)      | TBD         |
 | HW5: Final Project                                                                   | TBD         |
 
 # Competencies