create subtask md demo

Author: ShMcK

.gitignore

@@ -0,0 +1,2 @@
+.coderoad
+node_modules

TUTORIAL.md

@@ -9,3 +9,9 @@ A subtask example
 ### 1.1
 
 Create a function `add` that can take a variety of params.
+
+#### SUBTASKS
+
+- Add one number
+- Add two numbers
+- Add three numbers

coderoad.yaml

@@ -11,7 +11,7 @@ config:
         - npm install
   repo: 
     uri: https://github.com/shmck/coderoad-tutorial-subtask-demo
-    branch: v0.1.0
+    branch: v0.2.0
   dependencies:
     - name: node
       version: ">=10"
@@ -21,5 +21,4 @@ levels:
       - id: '1.1'
         setup:
           files:
-            - src/add.js
-          subtasks: true
+            - src/add.js