Update README.md

Gigabyte5671 · Gigabyte5671 · commit 83d0270b8cb9 · 2023-05-26T14:59:27.000+12:00
Add usage instructions and an example.
diff --git a/README.md b/README.md
@@ -1 +1,47 @@
-# CSS-to-HTML
+# CSS-to-HTML
+
+Generate HTML documents from just CSS.
+
+
+## Usage
+
+```javascript
+import { cssToHtml } from 'css-to-html';
+
+const css = 'p { color: purple; }';
+
+const html = cssToHtml(css);
+```
+
+
+## Example
+
+Input:
+```css
+h1 {
+	color: grey;
+}
+p > button.rounded {
+	background: #fff;
+	border-radius: 8px;
+}
+p > button.rounded:hover {
+	background: #ddd;
+}
+a img#logo {
+	display: block;
+	width: 1.5em;
+	height: 1.5em;
+}
+```
+
+Output:
+```html
+<body>
+	<h1></h1>
+	<p>
+		<button class="rounded"></button>
+	</p>
+	<a><img id="logo"></a>
+</body>
+```
