Fix formatting inconsistencies across markdown files

[BekahHW]

Description

Various markdown files throughout the repository have inconsistent formatting that should be standardized for better readability and maintainability.

Issues Identified

• Inconsistent heading levels and hierarchy
• Mixed indentation styles in lists
• Inconsistent table formatting
• Varied code block formatting
• Inconsistent link formatting
• Mixed quote styles

Tasks

• Run npm run format to catch basic formatting issues
• Manually review files for structural inconsistencies
• Standardize heading hierarchy (ensure proper H1 → H2 → H3 flow)
• Fix indentation in nested lists
• Standardize table formatting
• Ensure consistent code block language tags
• Fix any malformed links or references

Files That Need Attention

• Files in docs/monthly-challenges/ have varied formatting styles
• docs/lightning-talks/ contains mixed formatting patterns
• Various procedure files need standardization

Acceptance Criteria

• All markdown files follow consistent formatting rules
• npm run check passes without formatting errors
• Documentation is easier to read and maintain
• Future contributors have clear formatting examples to follow

Resources

• Markdown Style Guide