Auto Generate index : Vim Help(converted to HTML)

.
├── HTML.html
├── HTTP
│   ├── Cookie.html
│   └── CookieJar.html
├── HTTP.html
├── JSON.html
├── URI
│   ├── HTTP.html
│   └── HTTPS.html
├── URI.html
└── XML.html

tree v1.8.0 © 1996 - 2018 by Steve Baker and Thomas Moore
HTML output hacked and copyleft © 1998 by Francesc Rocher
JSON output hacked and copyleft © 2014 by Florian Sesser
Charsets / OS/2 support © 2001 by Kyosuke Tokoro