removing extraneous brackets from quiz

3-terrarium/1-intro-to-html/.github/post-lecture-quiz.md

@@ -1,17 +1,17 @@
 *Complete this quiz after the lesson by checking one answer per question.*
 
-1. [Spans and Divs are interchangeable]
+1. Spans and Divs are interchangeable
 
-- [ ] [true]
+- [ ] true
-- [ ] [false]
+- [ ] false
 
-2. [The head of an HTML doc can contain:]
+2. The head of an HTML doc can contain:
 
-- [ ] [the title tag]
+- [ ] the title tag
-- [ ] [metadata]
+- [ ] metadata
-- [ ] [all the above]
+- [ ] all the above
 
-3. [You can't use deprecated tags in your markup]
+3. You can't use deprecated tags in your markup
-- [ ] [true]
+- [ ] true
-- [ ] [false]
+- [ ] false
-- [ ] [false, but they have been deprecated for good reason]
+- [ ] false, but they have been deprecated for good reason