Move new shortcodes: image, card, asciinema, badge into experimental folder

exampleSite/content.en/docs/shortcodes/experimental/images.md

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+# Images
+
+> [!WARNING]
+> Experimental, could change in the future or be removed
+
+Image shortcode produces an image that can be clicked to expand.
+
+## Example
+
+```go-html-template
+{{</* image src="placeholder.svg" alt="A placeholder" title="A placeholder" loading="lazy" */>}}
+```
+{{< image src="placeholder.svg" alt="A placeholder" title="A placeholder" loading="lazy" >}}
+
+## Parameters
+
+`src` {{< badge style="warning" title="Required" >}}
+: The link to the image
+
+`class` {{< badge style="info" title="Optional" >}}  
+: An optional CSS class name that will be applied to the `img` element
+
+`alt` {{< badge style="info" title="Optional" >}}  
+: An optional alternate text for the image
+
+`title` {{< badge style="info" title="Optional" >}}  
+: An optional title for the image
+
+`loading` {{< badge style="info" title="Optional" >}}  
+: Sets `loading` control for the image: `lazy`, `eager` or `auto`
+
+
+