docs(core): Improve Documentation and Markdown Conventions

[FranzGB]

Hello, I appreciate the effort put into creating this fantastic library! I noticed a few typographical errors in the documentation and took the initiative to correct them. Additionally, I've implemented some best practices for Markdown formatting to enhance the readability and consistency of the documentation.

Here's a summary of the changes:

• Corrected various typographical errors across the documentation.
• Updated the documentation to adhere to recommended Markdown conventions.
• Added a type test

Please take a look at these changes whenever you get a chance. Thank you!

[JoseLion]

Thank you for helping with this! Everything looks great, but we intentionally don't want to use Prettier to automatically format the code. Can you please revert those formatting changes? Let me know if you have any questions 🙂

[JoseLion]

LGTM! Thank you for helping with this 🎉