Update the documentation with clearer paths and info on sub-modules#5816

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scottchiefbaker wants to merge 2 commits intoesp8266:masterfrom

scottchiefbaker:master

Commits on Feb 24, 2019

Update the documentation with clearer paths and info on sub-modules
scottchiefbaker
committed

Commits on Feb 25, 2019

Fix a path because we had already CDd in to the parent dir
scottchiefbaker
authored