Replace WhiteSource with Mend
https://github.com/OpenChain-Project/Reference-Material/blob/master/Adoption-Preparation/Model-Provisions/openchain-standards-model-provisions.0.5.md#q4do-you-use-any-software-tools-or-services-to-assist-with-open-source-license-compliance-for-example-black-duck-scancode-white-source-fossology-sw360
WhiteSource changed their name to Mend already some time ago and I'm suggesting that on this Q4 we'll use Mend instead of WhiteSource
Additional context
Let's use the current name. Of course we could list many other tools too, but it says "For example" so there is no need to list dozens of tools.