chore(README): require explicit vue-loader@legacy for Vue 2

Signed-off-by: Grigorii K. Shartsev <me@shgk.me>

Author: ShGKme

README.md

@@ -34,23 +34,10 @@ module.exports = webpackConfig
 
 ## Note on Vue 2 support
 
-This package supports both **Vue 2** and **Vue 3** by installing legacy `vue-loader` for Vue 2 in a `postinstall` script.
-
-In Vue 2 it may result in different `vue-loader` version in the `package-lock.json` and `node_modules`.
-
-### Troubleshooting in Vue 2 apps
-
-In case of `npm error code ENOTEMPTY` - remove `node_modules` and try again:
-
-```sh
-# In case of "npm error code ENOTEMPTY" in Vue 2
-rm -rf node_modules
-```
-
-To avoid any errors and have explicitly specified `vue-loader` - install it as dependency:
+This package supports both **Vue 2** and **Vue 3**.
+While **Vue 3** is supported by default, **Vue 2** requires an explicit legacy `vue-loader` installation:
 
 ```sh
-# Install legacy vue-loader for Vue 2
 npm i -D vue-loader@legacy
 ```