#!/usr/bin/env python3
from bs4 import BeautifulSoup
from re import sub

File = 'Static.html'

def Fix1(m):
  return f'<details><a name="{m.group(1)}"></a><summary>{m.group(2)}</summary>'

Source = str(BeautifulSoup(open(File, 'r'), 'html5lib'));

open(File, 'w').write(sub('<details><a name="(.+)"><summary>(.+)<\/summary>\s*<\/a>', Fix1, Source));