XROAD-44: Fix links in Vagrant instructions
XROAD-44: Fix links in Vagrant instructions

ria-ee/X-Road,vrk-kpa/X-Road,vrk-kpa/X-Road,ria-ee/X-Road,vrk-kpa/X-Road,vrk-kpa/X-Road,ria-ee/X-Road,vrk-kpa/X-Road,ria-ee/X-Road,ria-ee/X-Road,ria-ee/X-Road,ria-ee/X-Road,vrk-kpa/X-Road,vrk-kpa/X-Road,ria-ee/X-Road,vrk-kpa/X-Road