Add language name extension

(cherry picked from commit f10c383)

Author: andrewheiss

docs/extensions/listings/shortcodes-and-filters.yml

@@ -348,6 +348,12 @@
     Render [Kroki](https://kroki.io/) diagrams in Quarto websites — including HTML and PDF output.
     This extension uses the Kroki API via HTTP GET requests. The Kroki service URL is customizable, and the output format (e.g. SVG, PNG, etc.) can be specified per diagram.
 
+- name: language-name
+  path: https://github.com/andrewheiss/language-name
+  author: '[Andrew Heiss](https://github.com/andrewheiss/)'
+  description: >
+    Filter for adding customizable language names to code block output
+
 - name: latex-environment
   path: https://github.com/quarto-ext/latex-environment
   author: '[quarto-ext](https://github.com/quarto-ext)'