docs(config): added code block title documentation

content/notes/config.md

@@ -24,6 +24,49 @@ links: # Links to show in footer
     link: https://github.com/jackyzha0
 ```
 
+### Code Block Titles
+
+Quartz relies on Hugo's code highlighter,
+[Chroma](https://github.com/alecthomas/chroma), which happens to be ["really,
+really fast"](https://gohugo.io/content-management/syntax-highlighting/). As
+fast as it is, it does leave much to be desired, such as code block titles. In
+Obsidian, there's a plugin which provides this feature, called [Obsidian Better
+Code Block](https://github.com/stargrey/obsidian-better-codeblock). The idea
+behind the syntax is similar to Hugo's, although unfortunately not identical
+(stay tuned for a [Quartz
+binary](https://github.com/jackyzha0/quartz/issues/81)). To add code titles
+with Quartz:
+
+1. Ensure that code block titles are enabled in Quartz's configuration:
+
+    ```yaml {title="data/config.yaml", linenos=false}
+    enableCodeBlockTitle: true
+    ```
+
+2. Add the `title` attribute to the desired code block. Note there are two ways of
+   defining code blocks in Hugo.
+
+   - [**Highlight Shortcode**](https://gohugo.io/content-management/syntax-highlighting/#example-highlight-shortcode): Example not included as Hugo will insist on attempting to render it.
+   - [**Highlight Code Fences**](https://gohugo.io/content-management/syntax-highlighting/#highlighting-in-code-fences): Example provided 
+     intentionally omits a single back quote.
+
+      ```markdown {linenos=false}
+      ```yaml {title="data/config.yaml"}
+      enableCodeBlockTitle: true  # step 1 example
+      ``
+      ```
+
+**Note** that if `{title=<my-title>}` is included, and code titles are not
+enabled, no errors will occur and the title attribute will be ignored.
+Furthermore, by enabling code blocks, the header of each page will contain a
+script which will automatically attempt to find code blocks, and render their
+titles. In other words, if you don't have any code blocks (with titles), rather
+disable this feature in the configuration. For more information on syntax see
+[Hugo's syntax
+highlighting](https://gohugo.io/content-management/syntax-highlighting/).
+Finally, you can style the code block titles with the
+`assets/styles/code-title.scss` file.
+
 ### HTML Favicons
 
 A Favicon is most commonly seen as the **image preceding the URL in a browser**.