v0.2.1

What's Changed

Other Changes

• add beginning of the user guide by @lukevalenty in #40
• Bump lib/Catch2 from 9934b7d to b520257 by @dependabot in #41
• Bump lib/Catch2 from b520257 to 7b93a20 by @dependabot in #43
• Bump lib/Catch2 from 7b93a20 to 17a04f8 by @dependabot in #44
• Bump lib/Catch2 from 17a04f8 to f526ff0 by @dependabot in #45
• Update USER_GUIDE.md by @lukevalenty in #42
• fix find_last_of when char isn't found by @lukevalenty in #49

Full Changelog: v0.2.0...v0.2.1