Create an application using android studio with Blank activity and update the layout file to use WebView to load your website.
You can follow this documentation https://developer.android.com/guide/webapps/webview.html to load url.
You can add WebView like this example.
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
And in your activity load your url as follows
WebView myWebView = (WebView) findViewById(R.id.webview);
myWebView.loadUrl("http://www.example.com");
and if you want handle all links in that html to be opened in the same app follows this Clicking URLs opens default browser