First, collaborate with pchandra@redhat.com to determine whether we should A) continue including a Preface in our documentation, B) include this information as an Introduction chapter, or C) implement another way to present this content. 

Next, update the content that is currently in the Preface of the doc to comply with CCS best practices and standards:

• Consider rewording the following paragraph to be more user-focused and correct any typos that remain:
  • In Authentication, you learnt how to authenticate users to Red Hat Developer Hub. Developer Hub knowns who the users are 
  • Optionally collaborate with rhn-support-lfrazier to develop alternative language. 

• Eliminate self-referential language as well as the term "book" from the following paragraph:
  • In this book, learn how to authorize users to perform actions in Developer Hub. Define what users can do in Developer Hub.

• • NOTE: Simply state the "what" and "why" of authorizing users in GitHub without referencing the doc itself.