docs(readme): add readme

README.md

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+# 🌸 PetalVault-Android
+
+| ![Project logo](icons/icon.svg) | <h1>Secure offline multi-vault password manager with QR code-based synchronization</h1> |
+|---------------------------------|:---------------------------------------------------------------------------------------:|
+
+----------
+
+## 😋 Support project
+
+> 💜 Please support the project
+
+- BTC: `bc1qaj2ef2jlrt2uafn4kc9cmscuu8yqkjkvxxr5zu`
+- ETH: `0x284E6121362ea1C69528eDEdc309fC8b90fA5578`
+- ZEC: `t1Jb5tH61zcSTy2QyfsxftUEWHikdSYpPoz`
+
+- Or by my music on [🔷 bandcamp](https://f3rni.bandcamp.com/)
+
+- Or [message me](https://t.me/f33rni) if you would like to donate in other way 💰
+
+----------
+
+## ⚠️ Disclaimer
+
+### PetalVault is under development
+
+> Use at your own risk. The author of the repository is **not** responsible for any damage caused by the repository, the
+> application, or its components
+
+----------
+
+## 🚧 README in progress
+----------
+
+## ✨ Contribution
+
+- Anyone can contribute! Just create a **pull request**