secp256k1-haskell-0.1.1: CHANGELOG.md

# Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).

## 0.1.1
### Changed
- Update changelog to reflect name and version change.
- Update to LTS Haskell 12.9.

## 0.1.0
### Changed
- Name of package change from `secp256k1` to `secp256k1-haskell` to avoid Nix conflicts.