Docs: add template var Play link; cleanup existing (#86074)
* Docs: add template var Play link; cleanup existing
* Update docs/sources/dashboards/variables/_index.md
Co-authored-by: Isabel Matwawana <76437239+imatwawana@users.noreply.github.com>
* Update docs/sources/dashboards/variables/_index.md
Co-authored-by: Isabel Matwawana <76437239+imatwawana@users.noreply.github.com>
* Apply suggestions from code review
Co-authored-by: Isabel Matwawana <76437239+imatwawana@users.noreply.github.com>
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Co-authored-by: Isabel Matwawana <76437239+imatwawana@users.noreply.github.com>
(cherry picked from commit 5a57c31607)
Co-authored-by: David Allen <david.allen@grafana.com>