Update milestone1.md

Author: faizanx168

milestones/milestone1.md

@@ -6,11 +6,11 @@ This document should be completed and submitted during **Unit 5** of this course
 
 This unit, be sure to complete all tasks listed below. To complete a task, place an `x` between the brackets.
 
-- [ ] Read and understand all required features
-  - [ ] Understand you **must** implement **all** baseline features and **two** custom features
-- [ ] In `readme.md`: update app name
-- [ ] In `readme.md`: add all group members' names
-- [ ] In `readme.md`: complete the **Description and Purpose** section
+- [x] Read and understand all required features
+  - [x] Understand you **must** implement **all** baseline features and **two** custom features
+- [x] In `readme.md`: update app name
+- [x] In `readme.md`: add all group members' names
+- [x] In `readme.md`: complete the **Description and Purpose** section
 - [ ] In `readme.md`: complete the **Inspiration** section
 - [ ] In `readme.md`: list all features you intend to include in your app (in future units, you will check off features as you complete them and add GIFs demonstrating the features)
 - [ ] In `planning/user_stories.md`: add all user stories