better README

examples/HelloWorld/README.md

@@ -1,12 +1,26 @@
-![alt text](https://github.com/Catcrafts/Crafter.Web/blob/master/samples/HelloWorld/HelloWorld.png?raw=true)
+# HelloWorld Example
 
-This sample demonstrates a simple hello world.
+This sample demonstrates a simple hello world application using Crafter.CppDOM.
+
+## Usage
+
+```cpp
+import Crafter.CppDOM;
+using namespace Crafter::CppDOM;
+
+int main(){
+    HtmlElement body("body");
+    body.SetInnerHTML("Hello World!");
+}
+```
+
+## Building and Running
 
 ```bash
 crafter-build build executable
 run.sh
 ```
 
-and go to `http://localhost:8080/`
+Then navigate to `http://localhost:8080/` in your browser.
 
-if caddy is not installed you can use your favorite static file server instead
+If caddy is not installed, you can use your favorite static file server instead.