docs: code review, setup page for 'How to'

Author: AriPerkkio

docs/tutorialkit.dev/astro.config.ts

@@ -67,6 +67,10 @@ export default defineConfig({
               label: 'Overriding Components',
               link: '/guides/overriding-components/',
             },
+            {
+              label: 'How to',
+              link: '/guides/how-to/',
+            },
           ],
         },
         {

docs/tutorialkit.dev/src/content/docs/guides/how-to.mdx

@@ -0,0 +1,13 @@
+---
+title: How to
+description: "Examples showing how to utilize TutorialKit APIs"
+---
+
+## Access tutorial state
+
+## Write to terminal
+
+## Provide feedback to user when lesson is solved
+
+## How to watch a file for changes
+