Release v0.1.0 (#271)

Resolves #219

Author: abhinav

.changes/unreleased/Added-20240718-170745.yaml

@@ -0,0 +1,19 @@
+## v0.1.0 - 2024-07-22
+
+Announcing git-spice, a tool to stack Git branches with ease.
+This is the first public release of the tool
+after being in a private beta for several months.
+
+### Added
+- commit amend: Add -a/--all flag to stage changes to tracked files before committing.
+- {branch, downstack, upstack, stack} submit: Post a comment to PRs visualizing the stack and the PR's position in it.
+### Changed
+- all: Adjust terminology in messaging to refer to Change Requests consistently.
+### Removed
+- As promised in release notes for v0.1.0-beta5, drop support for old storage format for branch metadata.
+### Fixed
+- branch split: Fix panicking prompt when there are only two commits in the branch.
+- branch submit: Fix --draft/--no-draft API failures for existing PRs.
+- branch submit: Fix inability to submit if a directory name in root matches the branch name.
+- branch delete: Focus on current branch by default even if it's not tracked.
+- {upstack, downstack, stack} submit: Drop a few redundant calls to GitHub API.