rst format fix, ~~~ was being used instead of --- under subsections c…#939

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daniel-demelo wants to merge 4 commits intorealpython:masterfrom daniel-demelo:virtualenvs-rst-render-fix

+56-46

Commits on Nov 25, 2018

rst format fix, ~~~ was being used instead of --- under subsections causing the document not to render properly
daniel-demelo
committed
image path fixed
daniel-demelo
committed

Commits on Nov 26, 2018

headings fix and img path revert
daniel-demelo
committed

Commits on Nov 27, 2018

autoenv hierarchy change / style applied to document
daniel-demelo
committed