Fix to pkgconfig support
What's Changed
- ThreadPool.h: fix typo by @stephanlachnit in #20
- pkgconfig: Use Libs.private for "-pthread" flag. by @badshah400 in #22
New Contributors
- @stephanlachnit made their first contribution in #20
- @badshah400 made their first contribution in #22
Full Changelog: v2.2.0...v2.2.1