docs: add example of tutorialkit:store and tutorialkit:core usages

docs/tutorialkit.dev/astro.config.ts

@@ -67,6 +67,10 @@ export default defineConfig({
               label: 'Overriding Components',
               link: '/guides/overriding-components/',
             },
+            {
+              label: 'How to use TutorialKit API',
+              link: '/guides/how-to-use-tutorialkit-api/',
+            },
           ],
         },
         {
@@ -84,6 +88,10 @@ export default defineConfig({
               label: 'React Components',
               link: '/reference/react-components',
             },
+            {
+              label: 'TutorialKit API',
+              link: '/reference/tutorialkit-api',
+            },
           ],
         },
       ],

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

@@ -0,0 +1,13 @@
+---
+title: How to use TutorialKit API
+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
+