Cause lint failure

Signed-off-by: Jack Baldry <[email protected]>

docs/sources/_index.md

@@ -39,3 +39,6 @@ If it's your first time using the guide, start with the [Get started](https://gr
 
 Writers' Toolkit is open source and available at [`grafana/writers-toolkit`](https://github.com/grafana/writers-toolkit).
 If you have questions, or feedback on how to improve this documentation, [open an issue](https://github.com/grafana/writers-toolkit/issues/new) and help make this an even better resource.
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