improve upgrade documentation (#1056)
improve upgrade documentation (#1056)

* improve upgrade documentation

* Update 3.7/upgrading-starter.md

Co-authored-by: Simran <cb4c8db2eaa4565758ebb911fed4af5a2981ff23@users.noreply.github.com>

* Update 3.7/upgrading-starter.md

Co-authored-by: Simran <cb4c8db2eaa4565758ebb911fed4af5a2981ff23@users.noreply.github.com>

* Update 3.7/upgrading-starter.md

Co-authored-by: Simran <cb4c8db2eaa4565758ebb911fed4af5a2981ff23@users.noreply.github.com>

Co-authored-by: ansoboleva <88632894a9e531c470067a10e46d4700ecadd961@users.noreply.github.com>
Co-authored-by: Simran <cb4c8db2eaa4565758ebb911fed4af5a2981ff23@users.noreply.github.com>
arangodb/docs,arangodb/docs,arangodb/docs,arangodb/docs