text duplication in prompts

[yegor256]

The files in the style_prompts/ directory have large text blocks that are duplicates. Maybe we can create _headers.md and _footers.md files in this directory, which will have the head and tail parts respectively.

[github-actions]

🤖 I've analyzed¹ this issue title and have a suggestion for improvement:

Current title: text duplication in prompts
Suggested title: "Refactor style prompts to avoid text duplication with shared headers/footers"

Footnotes

1. Suggested by issue-title-ai ↩

[horw]

Solved in PR #32

[yegor256]

@horw cool!