Release 0.1.0

What's Changed

• Lua by @lerouxrgd in #1
• Rename scrap subcmd to crawl, add scrap subcmd for single pages by @lerouxrgd in #2
• Add rate limiter for crawler by @lerouxrgd in #3
• Seed robotstxt by @lerouxrgd in #4
• Add mdBook doc by @lerouxrgd in #5

Full Changelog: https://github.com/lerouxrgd/sws/commits/0.1.0