Fix formatting and remove subjective statement

@rrocchio this pull request makes three changes to your earlier work:

I've fixed the formatting issues with h1 and h2 elements around the Introduction. Your change made **Introduction** a section equivalent to **Status of the Memo** rather than a containing section, yet it made it an empty section.

I also removed the statement of **DRAFT** from the title. This is in conflict with the terms established by RFC 2026 Section 4.1 ["The Internet Standards Process -- Standards Track Maturity Model"]. For conformance, the key word Draft in reference to the Protocol or Standard should not be used until such time as "at least two independent and interoperable implementations from different code bases have been developed, and for which sufficient successful operational experience has been obtained." (RFC 2026 Section 4.1.2).

My third change is that I removed the statement: "The success of the Internet is in fact due to a lack of a central hub." This is conjecture without reference, and it does not actually add to the protocol itself. The merits and reasons for using a non-centralized network are already elaborated without needing to fallback to an unsubstantiated claim about the Internet.