Add HTML2PDF (#2368)

README.md

@@ -512,6 +512,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Asana](https://developers.asana.com/docs) | Programmatic access to all data in your asana system | `apiKey` | Yes | Yes |
 | [Cloudmersive Document and Data Conversion](https://cloudmersive.com/convert-api) | HTML/URL to PDF/PNG, Office documents to PDF, image conversion | `apiKey` | Yes | Yes |
 | [Code::Stats](https://codestats.net/api-docs) | Automatic time tracking for programmers | `apiKey` | Yes | No |
+| [Html2PDF](https://html2pdf.app/) | HTML/URL to PDF | `apiKey` | Yes | Unknown |
 | [Mercury](https://mercury.postlight.com/web-parser/) | Web parser | `apiKey` | Yes | Unknown |
 | [Notion](https://developers.notion.com/docs/getting-started) | Integrate with Notion | `OAuth` | Yes | Unknown |
 | [Pocket](https://getpocket.com/developer/) | Bookmarking service | `OAuth` | Yes | Unknown |