Release Sequence

1. Make a release branch
   1. git checkout -b release/x.y.z
2. Bump up version
   1. Update Cargo.toml > version
   2. cargo build (updating Cargo.lock)
3. Commit
   1. git add Cargo.toml
   2. git add Cargo.lock
   3. git commit -m "bump up x.y.z"
4. Push the branch
   1. git push origin release/x.y.z
5. Make a pull request with following format:

   Bump up the version to `x.y.z`.
   
   # <PR category>
   - <1 line descriprion> #<PR>
   - <1 line description> #<PR>
   ..
   

   where the := Improvements | Bugfixes | New Features | etc...
6. Merge the pull request
7. Add a new tag (vX.Y.Z)

   $ git tag -a vX.Y.Z
   $ git push origin vX.Y.Z
   

   The annotation should be the same as the body of the PR.
8. 🎉