docs: package.json (#7)

Co-authored-by: Igor Randjelovic <rigor789@gmail.com>

Author: Ombuweb

content/project-structure/package-json.md

@@ -0,0 +1,28 @@
+---
+title: package.json
+---
+
+The `package.json` contains a list of dependencies, scripts and the entry point to your app (in the `main` field). [Learn more on the NPM docs](https://docs.npmjs.com/cli/v9/configuring-npm/package-json)
+
+::: warning Note
+NativeScript plugins should always be installed as `dependencies`, because NativeScript doesn't include native code from `devDependencies`.
+:::
+
+```json
+{
+  "name": "my-cool-app",
+  "main": "src/main.ts",
+  "version": "1.0.0",
+  "private": true,
+  "dependencies": {
+    "@nativescript/core": "~8.4.0"
+  },
+  "devDependencies": {
+    "@nativescript/android": "8.4.0",
+    "@nativescript/ios": "8.4.0",
+    "@nativescript/types": "~8.4.0",
+    "@nativescript/webpack": "~5.0.10",
+    "typescript": "~4.5.5"
+  }
+}
+```

content/sidebar.ts

@@ -72,6 +72,11 @@ export default [
         link: '/project-structure/nativescript-config',
         icon: 'file',
       },
+      {
+        text: 'package.json',
+        link: '/project-structure/package-json',
+        icon: 'file',
+      },
       { text: 'webpack.config.js', link: '/webpack', icon: 'file' },
       // {
       //   text: 'package.json',