Updated reading

schedule.md

@@ -43,6 +43,7 @@ You will need to submit the [learning goals homework](assignments/hw0-learninggo
 {: .week}
 # Week 3 (4/12): Screen Readers/Bandwidth and Access
 **Readings and other Preparation**
+- [Living Disability Theory](https://make4all.org/wp-content/uploads/2020/09/hoffmann-living-disability-theory.pdf)
 - [Access Lab - the Switch](https://axesslab.com/switches/)
 - [Improving User Experience of Eye Tracking-Based Interfaces](https://dl.acm.org/doi/pdf/10.1145/3338844)
 - Optional viewing: [Switch Control overview](https://www.youtube.com/watch?v=GQKEE9nI1lk)