docs: use npm create as the create sub-command is also shared by pnpm & yarn

Author: haoqunjiang

README.md

@@ -9,13 +9,13 @@ The recommended way to start a Vite-powered Vue project
 ## Usage
 
 ```sh
-npm init vue@3
+npm create vue@3
 ```
 
 Or, if you need to support IE11, you can create a Vue 2 project with:
 
 ```sh
-npm init vue@2
+npm create vue@2
 ```
 
 Note that the version number (`@3` or `@2`) MUST NOT be omitted, otherwise `npm` may resolve to a cached and outdated version of the package.