link to how coderoad works

Signed-off-by: shmck <shawn.j.mckay@gmail.com>

Author: ShMcK

README.md

@@ -44,6 +44,10 @@ Install CodeRoad from [this link in the VSCode Marketplace](https://marketplace.
 - Node.js 10+
 - Git
 
+## How CodeRoad Works
+
+Read more in the docs about [how CodeRoad works](https://coderoad.github.io/docs/how-coderoad-works).
+
 ## Creating Tutorials
 
 Build and share your own interactive tutorials.

docs/docs/how-it-works.md renamed to docs/docs/how-coderoad-works.md

@@ -1,6 +1,6 @@
 module.exports = {
   someSidebar: {
-    Intro: ['overview', 'setup'],
+    Intro: ['overview', 'setup', 'how-coderoad-works'],
     Build: [
       'build-tutorial',
       'markdown',
@@ -12,7 +12,7 @@ module.exports = {
       'edit-tutorial',
       'create-a-practice-tutorial',
       'examples',
-      'errors'
+      'errors',
     ],
   },
 }