Frontend: Add the ReadMe tab with the current content

Summary

Add the ReadMe tab with the current content (so we'd have only one tab).

Proposal

From the discussion in number 3 in #415657[Details-inputs-table-v2.png], the intention here is to add the ReadMe tab with the current content showing.

Additional details

Some relevant technical details, if applicable, such as:

• Does this need a feature flag?
• Does there need to be an associated instrumentation issue created related to this work?
• Is there an example response showing the data structure that should be returned (new endpoints only)?
• What permissions should be used?
• Is this EE or CE?
  • EE
  • CE
• Additional comments:

Links/References