Update project remarkable to 1.6.0

libgrabber updated project remarkable to 1.6.0.

@jonschlinkert

### Metadata information

```json
{
  "metadata": {
    "packageManager": "github",
    "name": "remarkable",
    "repo": "jonschlinkert/remarkable",
    "files": {
      "basePath": "dist/",
      "include": ["remarkable.min.js"],
      "exclude": []
    },
    "path": "/home/jsdelivr/files/remarkable",
    "localVersions": ["1.0.0", "1.1.0", "1.1.1", "1.1.2", "1.2.0", "1.2.1", "1.2.2", "1.3.0", "1.4.0", "1.4.1", "1.4.2", "1.5.0"],
    "remoteVersions": ["1.0.0", "1.1.0", "1.1.1", "1.1.2", "1.2.0", "1.2.1", "1.2.2", "1.3.0", "1.4.0", "1.4.1", "1.4.2", "1.5.0", "1.6.0"],
    "branchVersions": []
  },
  "version": "1.6.0",
  "updated": true,
  "updatePath": "/home/jsdelivr/files/remarkable/1.6.0",
  "branch": "remarkable/1.6.0"
}
```