diff --git a/LICENSE.md b/LICENSE.md
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--- /dev/null
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+The MIT License (MIT)
+=====================
+
+Copyright © 2022 Maxim Lebedev
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the “Software”), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.md b/README.md
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+# tree
+
+[![Go Reference](https://pkg.go.dev/badge/source.toby3d.me/toby3d/tree.svg)](https://pkg.go.dev/source.toby3d.me/toby3d/tree)
+
+The fast and simple [Tree Notation](https://faq.treenotation.org/spec/) parser.
+Clean and unfiltered Go with single memory allocation and without any 3rd party
+dependencies.
+
+## Usage
+
+```go
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+
+	"source.toby3d.me/toby3d/tree"
+)
+
+func main() {
+	// For example, load tree content from file.
+	file, err := os.Open(filepath.Join(".", "html.example"))
+	if err != nil {
+		log.Fatalf("cannot open file: %v", err)
+	}
+	defer file.Close()
+
+	// Parse file contents from plain Tree Notation into *tree.Node with
+	// *tree.Node childrens.
+	node := tree.Parse(file)
+
+	fmt.Printf("%#v", node)
+	// Output:
+	// html
+	//  body
+	//   div おはようございます
+}
+```
+
+See package documentation and another examples
+[on pkg.go.dev](https://pkg.go.dev/source.toby3d.me/toby3d/tree).
+
+## Benchmark
+
+```bash
+$ GOMAXPROCS=1 go test -bench=Parse -benchmem -benchtime=10s
+goos: linux
+goarch: amd64
+pkg: source.toby3d.me/toby3d/tree
+cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
+BenchmarkParse  37139248           316.9 ns/op      4096 B/op          1 allocs/op
+```
+
+## License
+
+See [LICENSE.md](LICENSE.md)
+
+## Contact
+
+Check [my website](https://toby3d.me/) or [just drop email](mailto:hey@toby3d.me).