fix: rename gtr.fish to git-gtr.fish

[scarf005]

fish autocompletion didn't work because installed binary name is git-gtr, not gtr.

Summary by CodeRabbit

• Documentation
  • Updated installation guides and documentation to reference the renamed Fish shell completion file (now git-gtr.fish) so setup instructions point to the correct completion name.

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[coderabbitai]

Walkthrough

Documentation updates changing Fish shell completion filename references from gtr.fish to git-gtr.fish across README, CLAUDE.md, and the completion installation example.

Changes

Cohort / File(s)	Summary
Documentation references CLAUDE.md, README.md	Replaced references to completions/gtr.fish with completions/git-gtr.fish in narrative and examples.
Fish completion installation example completions/git-gtr.fish	Updated symlink/installation example to use git-gtr.fish (renamed target).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A tiny hop to change a name,
From gtr to git-gtr the path became,
Docs refreshed and symlinks too,
A rabbit cheers — quick, neat, and true! 🥕

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly and clearly describes the main change: renaming the Fish shell completion file from gtr.fish to git-gtr.fish, which aligns with all file updates documented in the pull request.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📥 Commits

Reviewing files that changed from the base of the PR and between 2ea339e and df99362.

📒 Files selected for processing (3)

• CLAUDE.md
• README.md
• completions/git-gtr.fish

🚧 Files skipped from review as they are similar to previous changes (2)

• completions/git-gtr.fish
• README.md

🔇 Additional comments (1)

CLAUDE.md (1)

406-406: Update correctly aligns documentation with Fish completion filename change.

The reference to the Fish shell completion file has been updated to match the renamed binary name (git-gtr instead of gtr). This ensures users follow the correct completion installation path, which should resolve Fish autocompletion issues described in the PR.

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