chore: Release version 3.3.0

- Bump version to 3.3.0
- Update CHANGELOG with release notes
- Update README gem installation instructions

Author: wteuber

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.3.0] - 2025-07-03
+
 ### Added
 - Directory collapsing feature with `-c, --collapse` option
   - Collapses consecutive single-child directories into a single line
@@ -106,7 +108,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - "Try it" section in README documentation
 
-[Unreleased]: https://github.com/wteuber/git-status-tree/compare/v3.2.0...HEAD
+[Unreleased]: https://github.com/wteuber/git-status-tree/compare/v3.3.0...HEAD
+[3.3.0]: https://github.com/wteuber/git-status-tree/compare/v3.2.0...v3.3.0
 [3.2.0]: https://github.com/wteuber/git-status-tree/compare/v3.1.0...v3.2.0
 [3.1.0]: https://github.com/wteuber/git-status-tree/compare/v3.0.0...v3.1.0
 [3.0.0]: https://github.com/wteuber/git-status-tree/compare/v2.0.0...v3.0.0

README.md

@@ -125,4 +125,6 @@ ___
     * `./bin/git-status-tree`
 6. Build and install local gem
    * `gem build git-status-tree.gemspec`
-   * `gem install git-status-tree-3.2.0.gem`
+   * `gem install git-status-tree-3.3.0.gem`
+7. Push new version to rubygems (maintainers only)
+   * `gem push git-status-tree-3.3.0.gem`

VERSION

@@ -1 +1 @@
-3.2.0
+3.3.0