Renamed config.toml to hugo.toml in the example site

Since Hugo v0.109.0, the preferred config filename is `hugo.toml`.

https://gohugo.io/getting-started/configuration/#configuration-file

> With v0.109.0 and earlier the basename of the site configuration file was
> `config` instead of `hugo`. You can use either, but should transition to the
> new naming convention when practical.

exampleSite/hugo.toml

@@ -0,0 +1,35 @@
+baseURL = 'http://example.org/'
+languageCode = 'en-us'
+title = "Notebook"
+theme = "no-js-hugo-theme"
+
+[markup]
+  [markup.highlight]
+    codeFences = true
+    noClasses = false
+
+  [markup.tableOfContents]
+    startLevel = 1
+    endLevel = 6
+
+[params]
+  # enable javascript theme switcher
+  # default: false
+  themeStyleSwitcher = true
+
+  # theme style if the theme switcher is disabled
+  # default: "light.css"
+  #themeStyle = "dark.css"
+
+  # footer markdown text at the bottom of every page
+  # default: <unset>
+  footerText = "[no-js-hugo-theme](https://github.com/stevenengler/no-js-hugo-theme)"
+
+  # enable the table of content on pages with more than this many words (negative to disable)
+  # (can be overridden per-page by setting the 'toc' front matter parameter)
+  # default: <unset>
+  #tocWordThreshold = 1000
+
+  # adds an "onion-location" meta attribute to the HTML of each page
+  # default <unset>
+  #onionLocation = "http://<your-onion-service-address>.onion"