Update roadmap and overview

[nellietan]

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[nellietan]

Objective:

• Establish the scope and flow (text and end-to-end diagram)
• The three z/OS system configuration steps should be called out under a single term in the diagram. These three steps are currently missing from the overview diagram. (@jalel01 Can you specify which three steps? Thanks.)
• Create separate diagrams for Installation and configuration for the overviews of these two sections with descriptions of terms/methods (similar to what we currently have in the Installation roadmap, only updated).

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[nellietan]

@1000TurquoisePogs Hi Sean, could you help enlighten me about the install and config steps of Zowe containers? we want to update the current overview section and the roadmaps to include Zowe containers setup. I struggle to understand where I should put it. Is it supposed to be a separate diagram or included somewhere in the existing install and config steps? If it should be included, is it an optional process after users install the Zowe runtime on z/OS? Or is it parallel to the install and config on z/OS? Thanks!!