Add experimental Asciinema support

exampleSite/content.en/docs/shortcodes/asciinema.md

@@ -0,0 +1,28 @@
+# Asciinema
+
+> [!WARNING]
+> Experimental, could change in the future or be removed
+
+Asciinema shortcode integrates asciinema player into the markdown page.
+
+```tpl
+{{</* asciinema
+  cast="asciinema-627097.cast"
+  or
+  cast="https://asciinema.org/a/vJNKUQFjuh7qKI2j3OoaKs8Jk.cast"
+  loop=true
+  autoplay=true
+  speed=2 */>}}
+```
+
+{{< asciinema
+  cast="asciinema-627097.cast"
+  loop=true
+  autoplay=true
+  speed=2 >}}
+
+## Parameters
+
+All parameters added to the shortcode will be transformed to options for Asciinema player, expect `cast` parameter that is used to locate cast file. Cast file follows same rules as portable image, it could be site resource, page resource or remote file URL.
+
+[List of Asciinema options](https://docs.asciinema.org/manual/player/options/)

exampleSite/content.en/docs/shortcodes/badges.md

@@ -1,7 +1,7 @@
 # Badges
 
 > [!WARNING]
-> Experimental, might not stay in theme.
+> Experimental, could change in the future or be removed
 
 Badges can be used to annotate your pages with additional information or mark specific places in markdown content.
 

exampleSite/content.en/docs/shortcodes/cards.md

@@ -1,5 +1,8 @@
 # Cards
 
+> [!WARNING]
+> Experimental, could change in the future or be removed
+
 ## Example
 
 {{% columns %}}

exampleSite/content.en/docs/shortcodes/katex.md

@@ -1,6 +1,7 @@
 ---
 title: KaTeX
 ---
+
 # KaTeX
 
 KaTeX shortcode let you render math typesetting in markdown document. See [KaTeX](https://katex.org/)