Syntax for adding multiple custom headers in IIS 'set config'

I have the following IIS config as part of a Release pipline:

set config "$(WebsiteName)$(WebAppName)" -section:system.webServer/httpProtocol /+"customHeaders.[name='Version-Info',value='$(Release.DefinitionName):$(Release.ReleaseName):$(Release.EnvironmentName)']"

How do I augment customheaders config such that I can stipulate multiple custom headers, rather that just the Version-Info below

customHeaders.[name='Version-Info',value='$(Release.DefinitionName):$(Release.ReleaseName):$(Release.EnvironmentName)']