Reworded webview doc

Author: inclement

doc/source/buildoptions.rst

@@ -100,8 +100,8 @@ You can use this with ``--bootstrap=webview``, or simply include the
 ``webviewjni`` recipe in your ``--requirements``.
 
 The webview bootstrap gui is, per the name, a WebView displaying a
-webpage, but this page is hosted on the device with Python. For
-instance, your Python code can start a webserver with a Flask
+webpage, but this page is hosted on the device via a Python
+webserver. For instance, your Python code can start a Flask
 application, and your app will display and allow the user to navigate
 this website.