docs: add missing gist example

exampleSite/content/docs/shortcodes/index.it.md

@@ -381,6 +381,7 @@ In order to add images to the gallery, use `img` tags for each image and add `cl
 {{</* gist "octocat" "6cad326836d38bd3a7ae" */>}}
 ````
 
+{{< gist "octocat" "6cad326836d38bd3a7ae" >}}
 
 **Example 2: Embed specific file from Gist**
 
@@ -388,6 +389,8 @@ In order to add images to the gallery, use `img` tags for each image and add `cl
 {{</* gist "rauchg" "2052694" "README.md" */>}}
 ```
 
+{{< gist "rauchg" "2052694" "README.md" >}}
+
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