fixes the instructions to enable autocompletion in zsh

See https://superuser.com/q/1718843

docs/_index.md

@@ -242,10 +242,11 @@ poetry completions zsh > ~/.zprezto/modules/completion/external/src/_poetry
 You may need to restart your shell in order for the changes to take effect.
 You may need to restart your shell in order for the changes to take effect.
 {{% /note %}}
 {{% /note %}}
 
 
-For `zsh`, you must then add the following line in your `~/.zshrc` before `compinit`:
+For `zsh`, you must then add the following lines in your `~/.zshrc`
 
 
 ```bash
 ```bash
 fpath+=~/.zfunc
 fpath+=~/.zfunc
+autoload -Uz compinit && compinit
 ```
 ```
 
 
 For `oh-my-zsh`, you must then enable poetry in your `~/.zshrc` plugins
 For `oh-my-zsh`, you must then enable poetry in your `~/.zshrc` plugins