rewrite swapy

.prettierrc

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+{
+  "trailingComma": "none",
+  "tabWidth": 2,
+  "semi": false,
+  "singleQuote": true
+}

README.md

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 # Swapy
 
-> A simple JavaScript tool for converting any layout you have to drag-to-swap layout
+_A framework-agnostic tool that converts any layout into a drag-to-swap one with just a few lines of code._
+
+Check out [swapy.tahazsh.com](https://swapy.tahazsh.com/) for complete docs and demos.
 
 ## Docs
 
-https://swapy.tahazsh.com/
+Check out the full documentation with many demos at [swapy.tahazsh.com/docs/installation](https://swapy.tahazsh.com/docs/installation).
+
+## License
+
+### Commercial license
+
+If you plan to use Swapy for developing commercial sites, themes, projects, or applications, the Commercial license is the right choice. This license allows you to keep your source code proprietary. You can purchase the Swapy Commercial License at [swapy.tahazsh.com](https://swapy.tahazsh.com/license).
+
+### Open-source license
+
+If you're developing an open-source application with a license compatible with the [GNU GPL license v3](https://www.gnu.org/licenses/gpl-3.0.html), you can use Swapy under the terms of the GPLv3.
+
+[Read more about Swapy's license](https://swapy.tahazsh.com/license).