(Automated) Update table of contents in README

Author: infinotiver

README.md

@@ -22,6 +22,7 @@ This repository is your one-stop shop for learning JavaScript at your own pace.
       - [08_typeof.js](Tutorials/08_typeof.js)
       - [09_type_conversion.js](Tutorials/09_type_conversion.js)
       - [10_order_of_precedence.js](Tutorials/10_order_of_precedence.js)
+      - [11_challenge.js](Tutorials/11_challenge.js)
     - [Arrays](Tutorials/Arrays)
         - [01A_arrays.js](Tutorials/01A_arrays.js)
         - [02B_manipulation.js](Tutorials/02B_manipulation.js)
@@ -71,6 +72,7 @@ This repository is your one-stop shop for learning JavaScript at your own pace.
       - [06_delete_properties.js](Tutorials/06_delete_properties.js)
       - [07_hasOwnProperty.js](Tutorials/07_hasOwnProperty.js)
       - [08_challenge.js](Tutorials/08_challenge.js)
+    - [challenge.js](Tutorials/challenge.js)
 - [Intermediate](Tutorials/Intermediate)
     - [01_freezing_objects.js](Tutorials/01_freezing_objects.js)
   - [Math](Tutorials/Math)