Fixed Number System readme.md

[Ettubrute05]

Proposed changes

Fixed markdown formatting for clarity and readability.
Modified charts for better readability.
Edited some explanations to match chart changes and for clarity.
Fixed table of contents and section title links so they work.
Fixed file name for lua example so the link to it works.
Fixed minor spelling errors.

Types of changes

What types of changes does your content introduce to this project?
Put an x in the boxes that apply (without "`")

• Proofreading (fix spelling, grammar, punctuation, accuracy) Proofreading
• New content (new section, new readme, etc.)
• Modifications (modifying existing content)
• [ ] Other (please describe)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. Don't hesitate to ask if you're unsure about any of them. We're here to help! This simply reminds us of what we will look for before merging your code.
Note: If you submit code make sure to test it

• Tested any code that was added/modified in this PR
• Added external links
• Added internal links
• Added images
• Added videos
• Added code snippets

Further comments

The changes are pretty straightforward.

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[the-label-bot]

The Label Bot has predicted the following:

Category	Value	Confidence	Applied Label
Kind	documentation	0.999	✔️
Size	L	0.935	✔️

[shhossain]

Sorry for the late update.

[shhossain]

@all-contributors add @Ettubrute05 for content and code.

[allcontributors]

@shhossain

I've put up a pull request to add @Ettubrute05! 🎉