docs: add missing inputs to README table, optimize Docker build

- Add pr_draft, pr_reviewers, pr_assignees, debug, timeout, retry_count
  to the README Inputs table
- Optimize Dockerfile with CGO_ENABLED=0 and -ldflags="-s -w" for
  smaller binary size

Author: somaz94

Dockerfile

@@ -4,7 +4,7 @@ FROM golang:1.26-alpine AS builder
 WORKDIR /app
 COPY . .
 
-RUN go build -o /go-git-commit-action ./cmd/main.go
+RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o /go-git-commit-action ./cmd/main.go
 
 # Final stage
 FROM alpine:3.23

README.md

@@ -101,7 +101,13 @@ A GitHub Action that automates git commit, push, tag, and pull request operation
 | `pr_body`           | No       | Custom body message for pull request | -                          |
 | `skip_if_empty`     | No       | Skip the action if there are no changes | false                   |
 | `pr_closed`         | No       | Whether to close the pull request after creation | false          |
+| `pr_draft`          | No       | Create pull request as draft   | false                             |
+| `pr_reviewers`      | No       | Reviewers for PR (comma-separated usernames) | -                  |
+| `pr_assignees`      | No       | Assignees for PR (comma-separated usernames) | -                  |
 | `pr_dry_run`        | No       | Simulate PR creation without actually creating one | false         |
+| `debug`             | No       | Enable debug logging           | false                             |
+| `timeout`           | No       | Operation timeout in seconds   | 30                                |
+| `retry_count`       | No       | Number of retries for failed operations | 3                      |
 
 **See [Configuration](docs/CONFIGURATION.md) for detailed descriptions and validation rules.**