Chore/improve readme

[Koda-Pig]

Description

Improved README.md:

• Fix spelling and grammatical errors
• Add language identifiers to code blocks to allow for proper syntax highlighting.

Motivation: errors annoy me and I want to contribute to the project.

Type of change

• Chore

Screenshots

No visual changes.

How Has This Been Tested?

No tests necessary, no functional or visual changes made. Only documentation.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas N/A
• I have made corresponding changes to the documentation N/A
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works N/A
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules N/A