docs: update README.md with complete configuration options

Added documentation for all supported configuration options:
- commit-msg.changeId as alternatives to gerrit.createChangeId
- commit-msg.coDevelopedBy

These new configuration options provide more consistent naming and
better alignment with the tool name.

Change-Id: I66ecccadcf5c78e002554b8060919c8413539a50
Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>

Author: jiangxin

README.md

@@ -40,6 +40,7 @@ npm run dev -- <command>
 ```
 
 This command now uses `commit-msg.dev.ts` for development mode with the following enhancements:
+
 - Suppresses experimental warnings with `NODE_OPTIONS=--no-warnings`
 - Uses a separate development entry point for better TypeScript import handling
 
@@ -87,7 +88,8 @@ When building the project, only the production files are compiled to the `dist`
 The tool follows these Git configuration options:
 
 - `gerrit.createChangeId` - Boolean to control whether to generate Change-Id (default: true)
-- `commit-msg.coDevelopedBy` - Boolean to control whether to add Co-Developed-By (default: true)
+- `commit-msg.changeId` - Boolean to control whether to generate Change-Id (alternative to gerrit.createChangeId, default: true)
+- `commit-msg.coDevelopedBy` - Boolean to control whether to add Co-developed-by (default: true)
 - `core.commentChar` - Defines the comment character (defaults to #)
 - `core.hooksPath` - Defines alternative path for hooks