Fix incorrect nesting of tags in README.md

[famouswizard]

Description:
This pull request addresses an issue in the README file where the <h1> tag was incorrectly nested inside a <p> tag. In HTML, the <h1> tag is a block-level element, while the <p> tag is an inline element. This incorrect nesting leads to invalid HTML structure, which can cause rendering issues and break the layout in some cases.

Fix:

The following incorrect nesting:

<p align="center">
    <h1 align="center">
        Semaphore CLI
    </h1>
    <p align="center">A command line tool to set up your Semaphore project and get group data.</p>
</p>

has been corrected to:

<h1 align="center">
    Semaphore CLI
</h1>
<p align="center">A command line tool to set up your Semaphore project and get group data.</p>

This change ensures that the structure of the document is semantically correct and will render as intended across different browsers and platforms.

Why this is important:
Correct HTML structure is critical for the proper display of content on web pages. Nested block-level elements like <h1> inside inline elements like <p> can cause layout issues or unexpected behavior, especially in older browsers or when using CSS frameworks. Fixing this ensures better compatibility and cleaner code.

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have run yarn format and yarn lint without getting any errors
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes