diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac07159..eff3b9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,3 @@
-## [0.0.1] - TODO: Add release date.
+## [1.0.0] - Initial release
 
-* TODO: Describe initial release.
+* Initial release supporting pubspec.yaml and pubspec.lock formatting styles
diff --git a/README.md b/README.md
index 57caeac..caabbe7 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,60 @@
-# json2yaml
+# json2yaml [![Build Status](https://travis-ci.org/alexei-sintotski/json2yaml.svg?branch=master)](https://travis-ci.org/alexei-sintotski/json2yaml) [![codecov](https://codecov.io/gh/alexei-sintotski/json2yaml/branch/master/graph/badge.svg)](https://codecov.io/gh/alexei-sintotski/json2yaml) [![pubspec_lock version](https://img.shields.io/pub/v/json2yaml?label=json2yaml)](https://pub.dev/packages/json2yaml)
 Dart package to render JSON data to YAML
+
+## json2yaml()
+
+json2yaml is function called to format Json as Yaml.
+
+```
+  const developerData = {
+    'name': "Martin D'vloper",
+    'job': 'Developer',
+    'skill': 'Elite',
+    'employed': true,
+    'foods': ['Apple', 'Orange', 'Strawberry', 'Mango'],
+    'languages': {
+      'perl': 'Elite',
+      'python': 'Elite',
+      'pascal': 'Lame',
+    },
+    'education': '4 GCSEs\n3 A-Levels\nBSc in the Internet of Things'
+  };
+
+  print(json2yaml(developerData));
+```
+
+This function is implemented in a very basic and maybe a naive way, please let me know if it does not work for you.
+
+## Usage
+
+To use json2yaml, add the following dependency to pubspec.yaml:
+
+```
+dependencies:
+  json2yaml: ^1.0.0
+```
+
+## Advanced usage: Yaml formatting styles
+
+json2yaml supports an optional argument to customize Yaml formatting for different use cases.
+At the moment, it supports three styles:
+- YamlStyle.generic (default) -- generic Yaml rendering
+- YamlStyle.pubspecYaml -- Yaml formatting style mimicking pubspec.yaml files
+- YamlStyle.pubspecLock -- Yaml formatting style mimicking pubspec.lock files generated by Dart pub
+
+Yaml style is supplied as an optional argument of json2yaml().
+
+```
+/// Yaml formatting control options
+enum YamlStyle {
+  generic,
+  pubspecYaml,
+  pubspecLock,
+}
+
+/// Converts JSON to YAML representation
+String json2yaml(
+  Map<String, dynamic> json, {
+  YamlStyle yamlStyle = YamlStyle.generic,
+});
+```
diff --git a/dev/dart_quality_checks.sh b/dev/dart_quality_checks.sh
index 36e4ef7..036cbd2 100755
--- a/dev/dart_quality_checks.sh
+++ b/dev/dart_quality_checks.sh
@@ -1,5 +1,6 @@
 #!/bin/bash -ex
 
+dart example/main.dart
 dartanalyzer --fatal-hints .
 pub run test
 pub run dependency_validator --ignore=functional_data_generator,sum_types_generator,test_coverage
diff --git a/example/main.dart b/example/main.dart
new file mode 100644
index 0000000..3803b2c
--- /dev/null
+++ b/example/main.dart
@@ -0,0 +1,45 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2019 Alexei Sintotski
+ *
+ * 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.
+ */
+
+import 'package:json2yaml/json2yaml.dart';
+
+// ignore_for_file: avoid_print
+
+void main() {
+  const developerData = {
+    'name': "Martin D'vloper",
+    'job': 'Developer',
+    'skill': 'Elite',
+    'employed': true,
+    'foods': ['Apple', 'Orange', 'Strawberry', 'Mango'],
+    'languages': {
+      'perl': 'Elite',
+      'python': 'Elite',
+      'pascal': 'Lame',
+    },
+    'education': '4 GCSEs\n3 A-Levels\nBSc in the Internet of Things'
+  };
+
+  print(json2yaml(developerData));
+}
diff --git a/example/pubspec.yaml b/example/pubspec.yaml
new file mode 100644
index 0000000..006c9a0
--- /dev/null
+++ b/example/pubspec.yaml
@@ -0,0 +1,8 @@
+name: example
+
+environment:
+  sdk: ">=2.5.0 <3.0.0"
+
+dependencies:
+  json2yaml:
+    path: ..
diff --git a/lib/src/json2yaml.dart b/lib/src/json2yaml.dart
index e5e066f..0d35f51 100644
--- a/lib/src/json2yaml.dart
+++ b/lib/src/json2yaml.dart
@@ -24,7 +24,7 @@
 
 import 'package:json2yaml/src/internal/render_to_yaml.dart';
 
-/// Yaml formatting control
+/// Yaml formatting control options
 enum YamlStyle {
   generic,
   pubspecYaml,
diff --git a/pubspec.yaml b/pubspec.yaml
index 476054b..c46412c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: json2yaml
 description: A new Flutter package project.
-version: 0.0.1
+version: 1.0.0
 author: Alexei Sintotski <alexei.sintotski@gmail.com>
 homepage: https://github.com/alexei-sintotski/json2yaml