RFR: 8295429: Update harfbuzz md file

[Damon Nguyen]

Update the harfbuzz md file with the newly generated md file. Matched format of previous license and organized copyright lines.

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Commit messages:
 - Update md file

Changes: https://git.openjdk.org/jdk/pull/10735/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10735&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295429
  Stats: 13 lines in 1 file changed: 4 ins; 3 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/10735.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10735/head:pull/10735

PR: https://git.openjdk.org/jdk/pull/10735