Update project countdown to 2.0.1

libgrabber updated project countdown to 2.0.1.

@kbwood

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "countdown",
    "repo": "kbwood/countdown",
    "files": {
      "include": ["*.js", "*.css"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/countdown",
    "localVersions": ["1.5.11", "1.6.0", "1.6.1", "2.0.0"],
    "remoteVersions": ["1.6.2", "1.6.3", "2.0.0", "2.0.1"],
    "branchVersions": []
  },
  "version": "2.0.1",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/countdown/2.0.1",
  "branch": "countdown/2.0.1"
}
```