docs: updating documentation, removing stray $ character

[hugomatheuss]

fix: remove stray $ character

Removed a stray $ character that was causing issues when copying and pasting the code into the terminal.

Description

The commit removes a stray $ character from the code that was causing problems when copying and pasting the script into the terminal.

Motivation and context

This change is required because the stray $ character was causing an issue when users attempted to copy the code into the terminal. When copied directly, the $ symbol was interpreted incorrectly by the terminal.

How has this been tested?

I tested the change by:

Copying and pasting the code into a terminal after the $ character was removed.
Verifying that no errors occur during the paste operation and the code runs successfully.
Ensuring that the terminal accepts the pasted code without unexpected behavior.
Testing was done in a local environment on PhpStorm terminal.

Screenshots (if appropriate)

Checklist:

Go over all the following points before making your PR:

• I have read the CONTRIBUTING document.
• My pull request addresses exactly one patch/feature.
• If my change requires a change to the documentation, I have updated it accordingly.

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