Updated Update Variable

Author: sofiiako

Classes and objects/Update variable/task-info.yaml

@@ -1,7 +1,7 @@
 type: edu
 custom_name: Update variable
 files:
-- name: access_variable.py
+- name: update_variable.py
   visible: true
   placeholders:
   - offset: 212

Classes and objects/Update variable/task.md

@@ -1,6 +1,6 @@
 ## Update variable 
 
-In this exercise, create a new `Car` object `car2` and then set the `color` 
+In this exercise, create a new `Car` object `car2`, and then set the `color` 
 of `car2` to `"red"`.  
 
 <div class='hint'>Remember how we instantiated objects in the previous task by