Documentation of plugins

Would like to request to add Documentation on how to create own plugins , i just follow how QtWebView works but i did not successfully create own Qt plugin using the template of QtWebView , 

thank you 

Please note that this is not for WEbView only i just used the QtWebView for testing purposes and research , but did not successful , i created my own WebView but did not work on Qt , 

We need some guides how to create own QT Plugin ,  so we can use native UI if needed , thank you