[ADD] Gitlab shortcut documentation

exampleSite/content/docs/shortcodes/index.md

@@ -296,7 +296,7 @@ In order to add images to the gallery, use `img` tags for each image and add `cl
 
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 | Parameter | Description                                           |
-| --------- | ----------------------------------------------------- |
+|-----------|-------------------------------------------------------|
 | `repo`    | [String] github repo in the format of `username/repo` |
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@@ -310,6 +310,30 @@ In order to add images to the gallery, use `img` tags for each image and add `cl
 
 <br/><br/><br/>
 
+## GitLab Card
+
+`gitlab` allows you to quickly link a GitLab Project (GitLab's jargon for repo). 
+It displays realtime stats about it, such as the number of stars and forks it has.
+Unlike `github` it can't display the main programming language of a project.
+Finaly custom GitLab instace URL can be provided, as long as the `api/v4/projects/` endpoint is available, making this shortcode compatible with most self-hosted / entreprise deployments.
+
+<!-- prettier-ignore-start -->
+| Parameter   | Description                                                            |
+|-------------|------------------------------------------------------------------------|
+| `projectID` | [String] gitlab numeric ProjectID                                      |
+| `baseURL`   | [String] optional gitlab instace URL, default is `https://gitlab.com/` |
+<!-- prettier-ignore-end -->
+
+**Example 1:**
+
+```md
+{{</* gitlab projectID="278964" */>}}
+```
+
+{{< gitlab projectID="278964" >}}
+
+<br/><br/><br/>
+
 ## Icon
 
 `icon` outputs an SVG icon and takes the icon name as its only parameter. The icon is scaled to match the current text size.