feat(changelog): add changelog

CHANGELOG.md

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+## 0.2.1 (2022-05-06)
+
+### Feat
+
+- **src**: fix readthedocs, move various deps to dev, add metadata, python3.8 as the min version
+
+### Fix
+
+- **src**: python 3.8 as min ver, fix readthedos
+- **src**: allow python3.7 for readthedocs CI
+- **src**: update deps to fix readthedocs
+
+### Perf
+
+- **src**: lint using perflint
+- **pre-commit**: update revs
+
+### Refactor
+
+- refactor the project modules
+- ****init****: add encoding to file
+- **noxfile**: fix mypy tests
+- **noxfile**: update lint session
+- **noxfile**: update noxfile with new pyproject.toml format
+- **pre-commit-config**: make easier to read
+- **setup.cfg**: remove file in favor of pyproject.toml configuration
+- **README**: add pre-commit enabled badge
+- **README**: add python version badge
+- improve pre-commit-hooks and add badge to README
+- Remove encoding declaration
+- **conf**: remove encoding pragma
+- **get_data.py**: rename function to fix flake8 warning
+
+## v0.2.0 (2021-12-17)
+
+## v0.1.7 (2021-08-24)
+
+## v0.1.6 (2021-03-13)
+
+## v0.1.4 (2021-03-03)
+
+## v0.1.3 (2020-07-07)
+
+## v0.1.2 (2020-07-07)
+
+## v0.1.1 (2020-07-07)
+
+## v0.1.0 (2020-07-07)