Copy static files to project root directory from nuget package

I am trying to build a nuget package in .Net Core for that I create a .net core classLibrary project and also add 2 json config files for configuration which I alsoadd into package .

I want ,when I add the package into my project then the 2 json files placed into project folder rootor where I set the path.

for this I do following steps ,but not working,files added as a link ,my requirementis add files physically into directory

Create a class library project

Set JSON file property

Set package options

after adding the package ,json files add as link.

I want a less complex straight forward solution.

Please help.