docs(config.md): Fixed multi-favicon examples and general favicon explanation throughout

content/notes/config.md

@@ -25,23 +25,29 @@ links: # Links to show in footer
 
 ### HTML Favicons
 
-A Favicon is most commonly seen preceding the URL in a browser. Some
-other examples include (but are not limited to) bookmarks, search history, and 
-app icons (i.e. "save page to homescreen" on mobile devices). [File format support](https://en.wikipedia.org/wiki/Favicon#File_format_support)
-and the [use of favicons](https://en.wikipedia.org/wiki/Favicon#Use_of_favicon) differ
-across the combination of platforms and browsers.
+A Favicon is most commonly seen as the **image preceding the URL in a browser**. 
+Some other examples include (but are not limited to) bookmarks, search history, 
+and app icons (i.e. "save page to home screen" on mobile devices).
+[File format support](https://en.wikipedia.org/wiki/Favicon#File_format_support)
+and the [use of favicons](https://en.wikipedia.org/wiki/Favicon#Use_of_favicon) 
+differ across the combination of platforms and browsers.
 
-If you would like to customize the favicons of your website, you can add them to the `data/config.yaml` file. The **default** without any set `favicon` key is:
+If you would like to customize the favicons of your quartz-based website, you 
+can add them to the `data/config.yaml` file. The **default** without any set 
+`favicon` key is:
 
 ```html
 <link rel="shortcut icon" href="icon.png" type="image/png">
 ```
 
-The default can be overridden by defining a value to the `favicon` key in your `data/config.yaml` file. Here is a `List[Dictionary]` example format, which is equivalent to the default:
+The default can be overridden by defining a value to the `favicon` key in your 
+`data/config.yaml` file. Here is a `List[Dictionary]` example format, which is
+equivalent to the default:
 
 ```yaml
 favicon:
   - { rel: "shortcut icon", href: "icon.png", type: "image/png" }
+#  - { ... } # Repeat for each additional favicon you want to add
 ```
 
 In this format, the following keys are available:
@@ -50,18 +56,34 @@ In this format, the following keys are available:
 - `href` (optional): The `href` attribute of the `<link>` tag.
 - `sizes` (optional): The `sizes` attribute of the `<link>` tag.
 
-If you plan to add multiple favicons generated by a website, it may be easier to define it as HTML:
+If you plan to add multiple favicons generated by a website (see list below), it
+may be easier to define it as HTML. Here is an example which appends the 
+**Apple touch icon** to quartz's default favicon:
 
 ```yaml
 favicon: |
   <link rel="shortcut icon" href="icon.png" type="image/png">
+  <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
 ```
 
+This second favicon will now be used as a web page icon when someone adds your 
+webpage to the home screen of their Apple device. If you are interested in more 
+information about the current, and past, standards of favicons, you can read 
+[this article](https://www.emergeinteractive.com/insights/detail/the-essentials-of-favicons/).
+
 Some websites that **generate favicons** for you (ordered alphabetically) include:
 - [`favicon.io`](https://favicon.io/)
 - [`realfavicongenerator.net`](https://realfavicongenerator.net/)
 - [`www.favicon.cc`](https://www.favicon.cc/)
 
+These sites will take a base image and generate a set of favicons for you, 
+one of which will be, for example, the `apple-touch-icon` favicon. These sites
+will often **also provide the HTML** for the favicon, which can be simply 
+added to the `data/config.yaml` using the HTML format of the `favicon` 
+argument. 
+
+**Note** that all generated favicon paths, defined by the `href` 
+attribute, are relative to the `static/` directory.
 
 ### Graph View
 To customize the Interactive Graph view, you can poke around `data/graphConfig.yaml`.