Updated sidebar

Author: luk3953

.vuepress/configs/sidebar/en.ts

@@ -93,6 +93,7 @@ export const sidebarEn: SidebarConfig = {
       children: [
         '/book/coming_from_bash.md',
         '/book/coming_from_cmd.md',
+        '/book/coming_from_powershell.md',
         '/book/nushell_map.md',
         '/book/nushell_map_imperative.md',
         '/book/nushell_map_functional.md',