hs-speedscope-0.2.1: CHANGELOG.md

# Revision history for hs-speedscope

## 0.2.1 -- 2020-12-19

* Support ghc-events 0.13, 0.14 and 0.15.

## 0.2 -- 2020-03-21

* Add --start and --end options which allow a profile to be filtered by
  eventlog UserMarker events

## 0.1.1 -- 2019-11-07

* Relax eventlog version check to allow 8.9

## 0.1 -- 2019-10-29

* Initial release