Release version 0.5.0

[vxgmichel]

I'm not too familiar with the hypothesis-trio release process, can someone do the release on PyPI?

[codecov]

Codecov Report

Merging #6 into master will increase coverage by 0.25%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master       #6      +/-   ##
==========================================
+ Coverage   95.53%   95.78%   +0.25%     
==========================================
  Files           6        6              
  Lines         358      380      +22     
  Branches       40       40              
==========================================
+ Hits          342      364      +22     
  Misses         10       10              
  Partials        6        6

Impacted Files	Coverage Δ
hypothesis_trio/_version.py	100% <100%> (ø)	⬆️
hypothesis_trio/_tests/test_stateful.py	100% <0%> (ø)	⬆️
hypothesis_trio/_tests/test_trio_asyncio.py	100% <0%> (ø)	⬆️
hypothesis_trio/stateful.py	91.19% <0%> (+0.05%)	⬆️
hypothesis_trio/_tests/test_async_stateful.py	98.8% <0%> (+0.11%)	⬆️