feat: add Pulumi bootstrap documentation for Argo CD and Gateway#3187

ATGardner wants to merge 2 commits into

mainOctopusDeploy/docs:mainfrom

noamgal/yos-347-document-pulumi-installation-for-octopus-argo-cd-gatewayOctopusDeploy/docs:noamgal/yos-347-document-pulumi-installation-for-octopus-argo-cd-gatewayCopy head branch name to clipboard