edit

Deconstruct_the_Web_with_Devtools.yaml

@@ -1,8 +1,12 @@
 goal: Deconstruct the Web with Devtools
 checkpoints:
+  - task: What is Devtools?
+    resource-url: 'https://developers.google.com/web/tools/chrome-devtools/'
   - task: Change the Script
     resource-url: 'http://discover-devtools.codeschool.com/chapters/1/'
   - task: Flip the Styles
     resource-url: 'https://www.youtube.com/watch?v=Z3HGJsNLQ1E/'
   - task: Fake Mobile
     resource-url: 'https://www.sitepoint.com/use-mobile-emulation-mode-chrome/'
+  - task: More tricks
+    resource-url: 'https://www.keycdn.com/blog/chrome-devtools/'

Design_Flexible_Layouts.yaml

@@ -5,7 +5,7 @@ checkpoints:
   - task: Use Flexbox Instead
     resource-url: 'https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Flexible_Box_Layout/Using_CSS_flexible_boxes/'
   - task: See It in Action
-    resource-url: 'https://egghead.io/lessons/misc-flexbox-fundamentals/'
+    resource-url: 'https://www.youtube.com/watch?v=JJSoEo8JSnc'
   - task: Get an Overview
     resource-url: 'https://css-tricks.com/snippets/css/a-guide-to-flexbox/'
   - task: Design a Complex Layout