To read the “vipassanākathā” in English, you can follow this instructions.
1. Open “3.9. Vipassanākathā”
2. Translate sinhala to English (translation fearure is in built in chrome, or Google translate extension can be installed in various browsers.)
This is good method to follow.
It gives rough translation of sutta.
Many suttas are available in sinhala but not in English, this method can be used for reading all of those suttas.
Not the best translation, obviously, but, it gives at least the idea of what sutta or page is about.