v0.8.0

Changelog

5229f7a Update oras modules and pipelines (#135)
eda7eb2 Revert "Update module file for 1.13 (#132)" (#134)
c038679 Update module file for 1.13 (#132)
bbe4258 Add insecure and plain-http flag when pull and push (#122)
205efe3 Allow overriding the manifestdescriptor when pushing (#133)
ea5c23a Readme formatting (#128)
a5f65f3 Docker Hub now supports OCI images (#127)
281ff98 Adding Shiwei github handle (#123)
1edc74f Added unknown config mediaType (#119)
4129956 Fix typo (#121)