docs: add a sponsorship link :)

README.md

@@ -15,6 +15,8 @@
 ![oracle cloud provider](https://img.shields.io/badge/provider-OracleCloud-orange?logo=oracle&color=f80000)
 ![programming provider](https://img.shields.io/badge/provider-Programming-orange?color=5f87bf)
 
+<a href="https://www.buymeacoffee.com/mingrammer" target="_blank"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy Me A Coffee" style="height: 41px !important;width: 174px !important;box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;" ></a>
+
 **Diagram as Code**.
 
 Diagrams lets you draw the cloud system architecture **in Python code**. It was born for **prototyping** a new system architecture design without any design tools. You can also describe or visualize the existing system architecture as well. Diagrams currently supports six major providers: `AWS`, `Azure`, `GCP`, `Kubernetes`, `Alibaba Cloud` and `Oracle Cloud`.  It now also supports `On-Premise` nodes.