Fun fun: if you make a shell heredoc to populate a Markdown file, and you put commands in backticks, it will execute the commands! Quote your heredoc marker to prevent chaos...

Bad:
cat > README.md << --end-readme--
Here's a dangerous command: `remove-everything`.
--end-readme--

Good:
cat > README.md << "--end-readme--"
Here's a dangerous command: `remove-everything`.
--end-readme--

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