chore: cleanup cli mention on clean and add multi-window to sidebar

Author: NathanWalker

content/guide/cli-basics.md

@@ -29,7 +29,7 @@ To clean, run this command from your project's root directory:
 ns clean
 ```
 
-Running `ns clean` removes the `node_modules`, `hooks`, and `platforms` directories and the `package-lock.json` file. You can customize what's cleaned in the [nativescript.config.ts](/configuration/nativescript#cli-pathstoclean).
+Running `ns clean` removes the `node_modules`, `hooks`, and `platforms`. You can customize what's cleaned in the [nativescript.config.ts](/configuration/nativescript#cli-pathstoclean).
 
 ### Cleaning multiple projects
 

content/sidebar.ts

@@ -286,6 +286,10 @@ export default [
         text: 'Multithreading',
         link: '/guide/multithreading',
       },
+      {
+        text: 'Multi-Window Development',
+        link: '/guide/multi-window',
+      },
       {
         text: 'Code Sharing',
         link: '/guide/code-sharing',