Mark Erikson's Advanced Techniques List

[TheLarkInn]

I haven't compared the lists at length but I think there a lot of merit in merging @markerikson 's webpack advanced techniques list into this repo. It's a little bit of work doing all the copy pasta and finding dupes, but maybe you could label this hacktoberfest on the issue, and someone can find this and do a PR.

[joshwiens]

@TheLarkInn - I'll get into it this evening