chore(docs): consolidate doc directories

[njhale]

Description of the change:

Consolidate Documentation and doc directories.

Motivation for the change:

Old Documentation directory still exists, but shouldn't.

[kevinrizza]

looks good to me.

[ecordell]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ecordell, njhale

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[ecordell]

doc only, merging

[openshift-ci-robot]

@njhale: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
ci/prow/e2e-aws	cfdaf30	link	/test e2e-aws

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