* Create transformations.md

* Update transformations.md

* Create calculations-list.md

* Update transformations.md

* Update menu.yaml

* Update transformations.md

* Update calculations-list.md

* updated menu

* Delete text.md

Deleted old text panel topic

* Update transformations.md

* added content

* Update transformations.md

* Update whats-new-in-v7-0.md

* Update transformations.md

* Update docs/sources/panels/transformations.md

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

* Update docs/sources/panels/transformations.md

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

* Update docs/sources/panels/transformations.md

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

* Update docs/sources/panels/calculations-list.md

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

* Update docs/sources/panels/transformations.md

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>

* Update transformations.md

* fixed broken links

Co-authored-by: Dominik Prokop <dominik.prokop@grafana.com>