tiny wording fixes

Author: tildeee

ada-project-docs/wave_03.md

@@ -10,7 +10,7 @@ A task's `is_complete` is `true` when there is a datetime for the task's `comple
 
 ## Requirements
 
-The following route is required for wave 3.
+The following are required routes for wave 3. Feel free to implement the routes in any order within this wave.
 
 ### Tips
 

ada-project-docs/wave_05.md

@@ -17,7 +17,7 @@ Our goal for this wave is to be able to create, read, update, and delete differe
 
 There should be a `Goal` model that lives in `app/models/goal.py`.
 
-Goals should contain these attributes. Feel free to change the name of the `goal_id` column if you would like. **The tests require the remaining column to be named exactly** as `title`.
+Goals should contain these attributes. Feel free to change the name of the `goal_id` column if you would like. **The tests require the title column to be named exactly** as `title`.
 
 - `goal_id`: a primary key for each goal
 - `title`: text to name the goal