Docs: Fix broken grafana plugins tutorial links (#52147)

* Fix broken grafana plugins docs links

* Update docs/sources/developers/plugins/build-a-streaming-data-source-plugin.md

* Update docs/sources/developers/plugins/_index.md

* Update docs/sources/developers/plugins/_index.md

* Update docs/sources/developers/plugins/_index.md

* Update docs/sources/developers/plugins/add-support-for-annotations.md

* Update docs/sources/developers/plugins/add-support-for-explore-queries.md

* Update docs/sources/developers/plugins/build-a-logs-data-source-plugin.md

Co-authored-by: Garrett Guillotte <100453168+gguillotte-grafana@users.noreply.github.com>

docs/sources/developers/plugins/_index.md

@@ -25,8 +25,8 @@ npx @grafana/toolkit plugin:create my-grafana-plugin
 
 If you want a more guided introduction to plugin development, check out our tutorials:
 
-- [Build a panel plugin]({{< ref "/tutorials/build-a-panel-plugin/" >}})
-- [Build a data source plugin]({{< ref "/tutorials/build-a-data-source-plugin/" >}})
+- [Build a panel plugin]({{< ref "build-a-panel-plugin.md" >}})
+- [Build a data source plugin]({{< ref "build-a-data-source-plugin.md" >}})
 
 ## Go further
 
@@ -36,13 +36,13 @@ Learn more about specific areas of plugin development.
 
 If you're looking to build your first plugin, check out these introductory tutorials:
 
-- [Build a panel plugin]({{< ref "/tutorials/build-a-panel-plugin/" >}})
-- [Build a data source plugin]({{< ref "/tutorials/build-a-data-source-plugin/" >}})
-- [Build a data source backend plugin]({{< ref "/tutorials/build-a-data-source-backend-plugin/" >}})
+- [Build a panel plugin]({{< ref "build-a-panel-plugin.md" >}})
+- [Build a data source plugin]({{< ref "build-a-data-source-plugin.md" >}})
+- [Build a data source backend plugin]({{< ref "build-a-data-source-backend-plugin.md" >}})
 
 Ready to learn more? Check out our other tutorials:
 
-- [Build a panel plugin with D3.js]({{< ref "/tutorials/build-a-panel-plugin-with-d3/" >}})
+- [Build a panel plugin with D3.js]({{< ref "build-a-panel-plugin-with-d3.md" >}})
 
 ### Guides
 

docs/sources/developers/plugins/add-support-for-annotations.md

@@ -8,7 +8,7 @@ title: Add support for annotations
 
 This guide explains how to add support for [annotations]({{< relref "../../dashboards/annotations/" >}}) to an existing data source plugin.
 
-This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "/tutorials/build-a-data-source-plugin/" >}}).
+This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "build-a-data-source-plugin.md" >}}).
 
 > **Note:** Annotation support for React plugins was released in Grafana 7.2. To support earlier versions, refer to [Add support for annotation for Grafana 7.1](https://grafana.com/docs/grafana/v7.1/developers/plugins/add-support-for-annotations/).
 

docs/sources/developers/plugins/add-support-for-explore-queries.md

@@ -8,7 +8,7 @@ title: Add support for Explore queries
 
 This guide explains how to improve support for [Explore]({{< relref "../../explore/" >}}) in an existing data source plugin.
 
-This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "/tutorials/build-a-data-source-plugin/" >}}).
+This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "build-a-data-source-plugin.md" >}}).
 
 With Explore, users can make ad-hoc queries without the use of a dashboard. This is useful when users want to troubleshoot or to learn more about the data.
 

docs/sources/developers/plugins/build-a-logs-data-source-plugin.md

@@ -8,7 +8,7 @@ title: Build a logs data source plugin
 
 This guide explains how to build a logs data source plugin.
 
-Data sources in Grafana supports both metrics and log data. The steps to build a logs data source plugin are largely the same as for a metrics data source. This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "/tutorials/build-a-data-source-plugin/" >}}) for metrics.
+Data sources in Grafana supports both metrics and log data. The steps to build a logs data source plugin are largely the same as for a metrics data source. This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "build-a-data-source-plugin.md" >}}) for metrics.
 
 ## Add logs support to your data source
 

docs/sources/developers/plugins/build-a-streaming-data-source-plugin.md

@@ -8,7 +8,7 @@ title: Build a streaming data source plugin
 
 This guide explains how to build a streaming data source plugin.
 
-This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "/tutorials/build-a-data-source-plugin/" >}}).
+This guide assumes that you're already familiar with how to [Build a data source plugin]({{< ref "build-a-data-source-plugin.md" >}}).
 
 When monitoring critical applications, you want your dashboard to refresh as soon as your data does. In Grafana, you can set your dashboards to automatically refresh at a certain interval, no matter what data source you use. Unfortunately, this means that your queries are requesting all the data to be sent again, regardless of whether the data has actually changed.