[readme] fix --no-use example

Author: jeremygau

README.md

@@ -121,7 +121,12 @@ export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || pr
 
 - If the environment variable `$XDG_CONFIG_HOME` is present, it will place the `nvm` files there.</sub>
 
-- You can add `--no-use` to the end of the above script (...`nvm.sh --no-use`) to postpone using `nvm` until you manually [`use`](#usage) it.
+- You can add `--no-use` to the end of the above script to postpone using `nvm` until you manually [`use`](#usage) it:
+
+```sh
+export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" --no-use # This loads nvm, without auto-using the default version
+```
 
 - You can customize the install source, directory, profile, and version using the `NVM_SOURCE`, `NVM_DIR`, `PROFILE`, and `NODE_VERSION` variables.
 Eg: `curl ... | NVM_DIR="path/to/nvm"`. Ensure that the `NVM_DIR` does not contain a trailing slash.