The main menu links addresses should not be hardcoded

[dmitrii-fediuk]

I need it for https://github.com/thehcginstitute-com/wp/issues/5 A part of https://github.com/thehcginstitute-com/wp/issues/6 Similar to https://github.com/thehcginstitute-com/m1/issues/63 Then I will do https://github.com/thehcginstitute-com/wp/issues/4