add docs

docs/index.html

@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>NeteaseCloudMusicApi</title>
+  <meta name="description" content="Description">
+  <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <link rel="stylesheet" href="//unpkg.com/docsify/lib/themes/vue.css">
+</head>
+<body>
+  <div id="app"></div>
+</body>
+<script>
+  window.$docsify = {
+    name: 'NeteaseCloudMusicApi',
+    repo: 'https://github.com/Binaryify/NeteaseCloudMusicApi'
+  }
+</script>
+<script src="//unpkg.com/docsify/lib/docsify.min.js"></script>
+</html>