docs: bump suggested version to v0.13.1

- Retract v0.13.0 due to incorrect unused directive detection (#51)
- Update README to suggest v0.13.1

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: mpyw

README.md

@@ -57,8 +57,8 @@ go run github.com/mpyw/gormreuse/cmd/gormreuse@latest ./...
 ```
 
 > [!CAUTION]
-> To prevent supply chain attacks, pin to a specific version tag instead of `@latest` in CI/CD pipelines (e.g., `@v0.13.0`).
-> All versions prior to v0.11.0 have been retracted due to critical bugs.
+> To prevent supply chain attacks, pin to a specific version tag instead of `@latest` in CI/CD pipelines (e.g., `@v0.13.1`).
+> All versions prior to v0.11.0 and v0.13.0 have been retracted due to critical bugs.
 
 ## Flags
 

go.mod

@@ -16,3 +16,7 @@ require (
 //   * Same violation reported multiple times when closures access parent scope variables
 //   * Fix generator produced invalid code like "tx = require.NoError(...)" for non-GORM wrappers
 retract [v0.1.0, v0.10.2]
+
+// - v0.13.0: Incorrect unused directive detection logic (#51)
+//   * //gormreuse:pure and //gormreuse:immutable-return incorrectly reported as unused
+retract v0.13.0