docs: add how-to-support.md (#1004)

* docs: add `how-to-support.md`

* docs: change budges

* docs: change layouts

* update

* update

doc/en/how-to-support.md

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+# How you can help develop Shadowban Scanner
+
+Shadowban Scanner is a hobby project of the author, but it takes a lot of time to develop and operate. If you can afford it, I would appreciate it if you could support its development. Please support me via [Buy Me a Coffee](https://www.buymeacoffee.com/keita_roboin) or [GitHub Sponsors](https://github.com/sponsors/Robot-Inventor).
+
+Also, just following [the author's Twitter account](https://x.com/keita_roboin) will motivate me to develop. If you are familiar with programming or would like to help with translation, please participate in the development on [GitHub](https://github.com/Robot-Inventor/shadowban-scanner/)!
+
+## Buy Me a Coffee
+
+<a href="https://www.buymeacoffee.com/keita_roboin" target="_blank" rel="noopener noreferrer"><img src="https://img.buymeacoffee.com/button-api/?text=Buy me a coffee&amp;emoji=☕&amp;slug=keita_roboin&amp;button_colour=FFDD00&amp;font_colour=000000&amp;font_family=Arial&amp;outline_colour=000000&amp;coffee_colour=ffffff"></a>
+
+## GitHub Sponsors
+
+[![GitHub Sponsors](https://img.shields.io/static/v1?label=GitHub%20Sponsors&message=%E2%9D%A4&logo=GitHub&color=%23db61a2)](https://github.com/sponsors/Robot-Inventor)

doc/ja/how-to-support.md

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+# Shadowban Scannerの開発を支援する方法
+
+Shadowban Scannerは作者の趣味のプロジェクトですが、開発や運用には多くの時間がかかっています。余裕のある方は、開発を支援していただけると助かります。[Buy Me a Coffee](https://www.buymeacoffee.com/keita_roboin)または[GitHub Sponsors](https://github.com/sponsors/Robot-Inventor)での支援を受け付けています。
+
+<a href="https://www.buymeacoffee.com/keita_roboin" target="_blank" rel="noopener noreferrer"><img src="https://img.buymeacoffee.com/button-api/?text=Buy me a coffee&amp;emoji=☕&amp;slug=keita_roboin&amp;button_colour=FFDD00&amp;font_colour=000000&amp;font_family=Arial&amp;outline_colour=000000&amp;coffee_colour=ffffff" width="200px"></a>
+
+<a href="https://github.com/sponsors/Robot-Inventor" target="_blank" rel="noopener noreferrer"><img src="https://img.shields.io/static/v1?label=GitHub%20Sponsors&message=%E2%9D%A4&logo=GitHub&color=%23db61a2" width="200px"></a>
+
+また、[作者のTwitterアカウント](https://x.com/keita_roboin)をフォローしていただけるだけでも、開発のモチベーションになります。プログラミングに精通している方や翻訳に協力したい方は、ぜひ[GitHub](https://github.com/Robot-Inventor/shadowban-scanner/)で開発に参加してください！