Revise section titles and standardise formatting

[garyrutland]

Updated section titles and adjusted text for consistency.

📝 Pull Request

Is this PR related to an open issue?

• Yes, it resolves: [Link Issue Number(s) Here]
• No, this is a new change/addition.

Description of changes

• What was changed? (e.g., Added a new section, corrected a command, rephrased a paragraph)
• Where was the change made? (e.g., WORKSHOP.md, line 45; README.md section Prerequisites)

Why is this change necessary?

• Correction: Fixing a typo, broken link, or inaccurate information.
• Clarification: Making a confusing section easier to understand.
• Addition: Adding entirely new content/steps to the workshop.
• Refactoring: Reorganising content without changing the meaning.
• Other: [Please describe]

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Cross-platform (Mac, Windows, Chromebook, Linux) checklist

Contributor must confirm the following to maintain compatibility across all target systems:

• Path separation: Directory paths use forward slashes (/) only (avoiding Windows-style backslashes \).
• Shell commands: Commands use only universal syntax (e.g., docker compose up, avoiding complex OS-specific utilities).
• Terminal check: The instructions are clear and functional when run from common terminals across Mac, Windows, Chromebook (Crosh/Terminal), and Linux.
• Case sensitivity: Filenames are referenced correctly using case-sensitive best practices to prevent errors when pulled down on different operating systems.
• Prerequisites slignment: The changes do not introduce any new local tools that are not explicitly documented in the Prerequisites Guide.

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Reviewer checklist

• The content follows the style and tone of existing documentation.
• The changes are grammatically correct and free of typos.
• The file structure is maintained (e.g., no unnecessary files added).
• (If applicable) All internal and external links are working.