Prep to release 0.3.0

[guangie88]

As per title

[codecov]

Codecov Report

Merging #48 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #48   +/-   ##
=======================================
  Coverage   69.76%   69.76%           
=======================================
  Files           4        4           
  Lines         215      215           
=======================================
  Hits          150      150           
  Misses         65       65

Impacted Files	Coverage Δ
include/spdlog_setup/conf.h	83.8% <ø> (ø)	⬆️
include/spdlog_setup/details/setup_error.h	0% <ø> (ø)	⬆️
include/spdlog_setup/details/template_impl.h	82.85% <ø> (ø)	⬆️
include/spdlog_setup/details/conf_impl.h	11.11% <ø> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 12eda19...7f56479. Read the comment docs.