Move everything into top-level directory so Gitlab pages can find Hugo

... can't find a way to tell it where Hugo's config.toml is, drag.

web/config.toml

@@ -1,17 +0,0 @@
-baseURL = "http://example.org/"
-languageCode = "en-us"
-title = "When There's Not a Module For That"
-theme = "reveal-hugo"
-
-[markup.goldmark.renderer]
-unsafe= true
-
-[outputFormats.Reveal]
-baseName = "index"
-mediaType = "text/html"
-isHTML = true
-
-[params.reveal_hugo]
-# theme = "blue"
-custom_theme = "agaric-blue.scss"
-custom_theme_compile = true