• thumbnail is copied from: https://github.com/adonovan/gopl.io/tree/1ae3ec64947b7a5331b186f1b1138fc98c0f1c06/ch8/thumbnail
• With the gitlab_interview, I was provided a Merge Request with add-concurrency changes to master, and told to improve it. my_improvements are my improvements which use the Looping in Parallel pattern from The Go Programming Language book, as seen on pg 238

thumbnail and gitlab_interview are referenced from ../../LearningGo-AnIdiomaticApproachToRealWorldGoProgramming/README.md#looping-in-parallel