chore(): Add donation section to the README

README.md

@@ -17,6 +17,15 @@ Visit [glidejs.com](https://glidejs.com/docs) for documentation.
 
 > Looking for old documentation? [Wiki](https://github.com/glidejs/glide/wiki) contains archived documentation of Glide.js in version `^2.0.0`.
 
+## Donation
+
+Glide.js is an open source project licensed under the MIT license. It's completely free to use. However, it would be great if you buy me a cup of coffee once in a while to keep me awake :)
+
+- [PayPal](https://www.paypal.me/jedrzejchalubek)
+- Bitcoin (BTC) - `3LS37Xzyiwthmi73GeBrFXcYzJkbV32k4o`
+- Ether (ETH) - `0xB5a1272b14fB4d794bdEaaC72ea9520c8D9fC74A`
+- Litecoin (LTC) - `MA9o1Tcj6VDwKGg1ez4yPngAhTcy988c2S`
+
 ## Getting started
 
 Pull-in a latest version with NPM ...