* Update global-variables.md

* Create _index.md

* Create add-query-variable.md

* added variable task files

* Update templates-and-variables.md

* added content

* content edits

* Update formatting-multi-value-variables.md

* added content and updated menu

* Update add-query-variable.md

* applied edits

* Update docs/sources/variables/formatting-multi-value-variables.md

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

* Update docs/sources/variables/formatting-multi-value-variables.md

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

* Update docs/sources/variables/formatting-multi-value-variables.md

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

* applied edits

* Update docs/sources/variables/filter-variables-with-regex.md

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

* Update docs/sources/variables/formatting-multi-value-variables.md

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

* Update docs/sources/variables/formatting-multi-value-variables.md

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

* Update formatting-multi-value-variables.md

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>