Serves index.html pages for requests to paths without a filename in Phoenix / Plug applications.

1. Add plug_static_index_html to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:plug_static_index_html, "~> 1.0"}]
end
```

Add Plug.Static.IndexHtml before Plug.Static in endpoint.ex

plug Plug.Static.IndexHtml, at: "/docs"
plug Plug.Static, at: "/", from: :my_app

See docs at https://hexdocs.pm/plug_static_index_html

See LICENSE file for details