Merge pull request #435 from c-bata/bump-to-0.9.1

Bump the version up to v0.9.1

Author: c-bata

CONTRIBUTING.md

@@ -119,7 +119,7 @@ $ isort .
 
 The release process(compiling TypeScript files, packaging Python distributions and uploading to PyPI) is fully automated by GitHub Actions.
 
-1. Replace `optuna_dashboard.version.__version__` to the next version (e.g. 0.8.0).
+1. Replace `optuna_dashboard.__version__` to the next version (e.g. 0.8.0).
 2. Create a git tag (e.g. v0.8.0) and push it to GitHub. If succeeded, GitHub Action will build sdist/wheel packages and create a draft GitHub release.
 3. Edit a GitHub release, generate release note, write highlights of this release if needed, and mark "Create [a discussion](https://github.com/optuna/optuna-dashboard/discussions/categories/announcements) for this release" checkbox. Then make it publish. GitHub Action will release the new version to PyPI.
 

optuna_dashboard/__init__.py

@@ -14,4 +14,4 @@
 from ._note import save_note  # noqa
 
 
-__version__ = "0.9.0"
+__version__ = "0.9.1"