* bip-89, bip-114, bip-441: add missing <references/> tag
These three BIPs use <ref> footnotes but never place a <references/>
tag, so GitHub's mediawiki renderer drops the footnote text entirely and
the [n] superscripts link to anchors that do not exist.
Add a Footnotes section as well, so the notes are rendered.
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Co-authored-by: Kanan M <kanan@MacBook-Pro-Sanan.local>
- Specification was a level-3 heading and therefore rendered as a
subsection of Motivation; Backward Compatibility, Implementation and
Related Work were one level too deep as well.
- Drop the stray '<' in front of the testnet address tb1pfees9rn5nz.
- 'typea' -> 'type', 'ineherent' -> 'inherent'.
- Add the Copyright section required by BIP 3, matching the
BSD-3-Clause License header.
Line 57 uses a closing </pre> where the opening tag was intended, so
the example TxDP that follows (up to the real </pre> on line 90) is
rendered as prose instead of a preformatted block.
KananandKanan M