Documentation: some commands are missing '-' in `git-cliff`

### Is there an existing issue for this? - [x] I have searched the existing issues ### Description of the bug Having a look at [this page of documentation](https://git-cliff.org/docs/usage/initializing), the following line is missing the '-' between `git` and `cliff`: ```sh git cliff --init ``` In both this file and others, there is a mix of `git-cliff` and `git cliff`. For cases where `git` is not available in the environment, this leads to unknown commands when copy/pasting. It does not look like `git-cliff` needs `git` to work, i.e. when I run `git-cliff -u` it *does* read the contents of the commits successfully. ### Steps To Reproduce The following dockerfile was used: ```dockerfile FROM alpine:3.23.3 RUN apk add git-cliff ``` Then running: ```sh /app $ git cliff ``` returns ```sh sh: git: not found ``` ### Expected behavior Either: - indicate that `git` is required for `git-cliff` to work ("getting started" or "installation" page) - or ensure all example commands contain the '-' ### Screenshots / Logs _No response_ ### Software information - Operating system: `6.18.9-arch1-2`, `Docker version 29.2.1` - Rust version: not installed - Project version: `2.2.2-r0` ### Additional context _No response_