add more examples

README.md

@@ -4,18 +4,75 @@ Project is at very beginning. Probably a lot of bugs.
 
 This library allows you to add `async` and `await` keywords in Python and JavaScript code almost the same way you would do it in the native code.
 
-Example:
+Example:  
+
+Haxe source code
+
+```haxe
+@:build(hxasync.AsyncMacro.build())
+class MyExample {
+  public function new() { }
+
+  @async public function myPromise() {
+    return "something";
+  }
+
+  @async public function some() {
+    return @await this.myPromise();
+  }
+}
 
-```
 @:build(hxasync.AsyncMacro.build())
 class Main {
-    @async public static function some() {
-        return @await somePromise;
-    }
+  @async public static function main() {
+    var example = new MyExample();
+    return @await example.some();
+  }
+}
+```
+
+Python output (some Haxe-generated output is omitted)
+```python
+class MyExample:
+    __slots__ = ()
 
-    @async public static function another() {
-        return @await Main.some()
-    }
+    def __init__(self):
+        pass
+
+    async def myPromise(self):
+        return "something"
+
+    async def some(self):
+        return await self.myPromise()
+
+
+
+class Main:
+    __slots__ = ()
+
+    @staticmethod
+    async def main():
+        example = MyExample()
+        return await example.some()
+```
+
+JavaScript output (some Haxe-generated output is omitted)
+```js
+class MyExample {
+	constructor() {
+	}
+	async myPromise() {
+		return "something";
+	}
+	async some() {
+		return await this.myPromise();
+	}
+}
+class Main {
+	static async main() {
+		let example = new MyExample();
+		return await example.some();
+	}
 }
 ```