improve comment in pack runner
improve comment in pack runner

JetBrains/teamcity-nuget-support,JetBrains/teamcity-nuget-support,JetBrains/teamcity-nuget-support,JetBrains/teamcity-nuget-support,stormleoxia/teamcity-nuget-support,stormleoxia/teamcity-nuget-support,stormleoxia/teamcity-nuget-support