fix: fixed MultipleChoice symbol in Assessments docs (#1357)

Author: VictorPuga

Sources/docc/DocCDocumentation.docc/Reference Syntax/Tutorials Syntax/Top-Level Directives/Tutorial/Assessments/Assessments.md

@@ -8,7 +8,7 @@ Tests the reader's knowledge at the end of a tutorial page.
 
 ## Overview
 
-Use the `Assessment` directive to display an assessments section that helps the reader check their knowledge of your Swift framework or package APIs at the end of a tutorial page. An assessment includes a set of multiple-choice questions that you create using the`MultipleChoice`` directive. If the reader gets a question wrong, you can provide a hint that points them toward the correct answer so they can try again.
+Use the `Assessment` directive to display an assessments section that helps the reader check their knowledge of your Swift framework or package APIs at the end of a tutorial page. An assessment includes a set of multiple-choice questions that you create using the ``MultipleChoice`` directive. If the reader gets a question wrong, you can provide a hint that points them toward the correct answer so they can try again.
 
 ```
 @Tutorial(time: 30) {