v2.0.0
- #32 - README updates (@LiorBanai)
 - #43 - Serilog dependency updates (@bdovaz)
 - #54 - update targets to match Serilog 3 (@pmetz-steelcase)
 - #56 - update to Serilog 3.1, include trace and span ids in output when present (@nblumhardt)
 - Build updates (@SimonCropp)