Prepare dashboards, panels, and visualizations for Grafana Cloud mount (#73632)

* Update dashboards pages to use `docs/reference` shortcode

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Update panels-visualizations pages to use `docs/reference` shortcode

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Use raw Markdown admonitions for contextual links

See https://discourse.gohugo.io/t/markdown-reference-links-in-shortcodes/5770/3.
Should be resolved by https://docs.google.com/document/d/19xd4CD3IrAqQqNR3xQeLfuIV-u2iNSQSBEvPZE9J4qU/edit#heading=h.5sybau7waq2q.

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Prefer "Warning" over "Caution"

Co-authored-by: Isabel <76437239+imatwawana@users.noreply.github.com>

* Prettier

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Fix some links missing destinations

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Fix 'time range controls' link

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Add missing 'HTTP APIs' link

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Fix dashboard links missing destinations

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Fix links missing destinations in panels and visualizations documentation

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

* Fix dud link

Co-authored-by: Isabel <76437239+imatwawana@users.noreply.github.com>

---------

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>
Co-authored-by: Isabel <76437239+imatwawana@users.noreply.github.com>

docs/sources/panels-visualizations/visualizations/dashboard-list/index.md

@@ -32,7 +32,7 @@ On each dashboard load, this panel queries the dashboard list, always providing
 Use these options to refine your visualization.
 
 - **Include current time range -** Select this option to propagate the time range of the current dashboard to the dashboard links. When the user clicks a link, the linked dashboard opens with the indicated time range already set.
-- **Include current template variable values -** Select this option to include template variables currently used as query parameters in a link. When the user clicks the link, any matching templates in the linked dashboard are set to the values from the link. Learn more about [Dashboard URL variables]({{< relref "../../../dashboards/build-dashboards/create-dashboard-url-variables/" >}}).
+- **Include current template variable values -** Select this option to include template variables currently used as query parameters in a link. When the user clicks the link, any matching templates in the linked dashboard are set to the values from the link. Learn more about [Dashboard URL variables][].
 - **Starred -** Display starred dashboards in alphabetical order.
 - **Recently viewed -** Display recently viewed dashboards in alphabetical order.
 - **Search -** Display dashboards by search query or tags. You must enter at least one value in **Query** or **Tags**. For the **Query** and **Tags** fields. Variable interpolation is supported, for example,`$my_var` or `${my_var}`.
@@ -48,3 +48,8 @@ These options only apply if the **Search** option is selected.
 - **Tags -** Here is where you enter your tags you want to search by. Note that existing tags will not appear as you type, and they _are_ case sensitive.
 
 > **Note:** When multiple tags and strings appear, the dashboard list displays those matching _all_ conditions.
+
+{{% docs/reference %}}
+[Dashboard URL variables]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/build-dashboards/create-dashboard-url-variables"
+[Dashboard URL variables]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/build-dashboards/create-dashboard-url-variables"
+{{% /docs/reference %}}