Docs: Split up Sharing topic (#19680)

docs/sources/reference/share_dashboard.md

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+title = "Sharing a Dashboard"
+keywords = ["grafana", "dashboard", "documentation", "sharing"]
+type = "docs"
+[menu.docs]
+parent = "dashboard_features"
+weight = 6
++++
+
+# Share dashboard
+
+Share a dashboard via the share icon in the top nav. This opens the share dialog where you
+can get a link to the current dashboard with the current selected time range and template variables. If you have
+made changes to the dashboard, make sure those are saved before sending the link. Below are ways to share a dashboard.
+
+## Dashboard snapshot
+
+A dashboard snapshot is an instant way to share an interactive dashboard publicly. When created, we <strong>strip sensitive data</strong> like queries
+(metric, template and annotation) and panel links, leaving only the visible metric data and series names embedded into your dashboard. Dashboard
+snapshots can be accessed by anyone who has the link and can reach the URL.
+
+{{< docs-imagebox img="/img/docs/v50/share_panel_modal.png" max-width="700px" >}}
+
+## Publish snapshots
+
+You can publish snapshots to you local instance or to [snapshot.raintank.io](http://snapshot.raintank.io). The later is a free service
+that is provided by [Raintank](http://raintank.io) that allows you to publish dashboard snapshots to an external grafana instance.
+The same rules still apply, anyone with the link can view it. You can set an expiration time if you want the snapshot to be removed
+after a certain time period.