RFR: 8436: Formatting of rule descriptions with manual bullets / line breaks is gone on revisit

[Aymane Harmaz]

Replaced manual bullet points and line breaks in rule descriptions with HTML entities and tags for improved rendering. the attached images show the issue


<img width="613" height="364" alt="First Visit" src="https://github.com/user-attachments/assets/34c6564b-0581-44e4-a9ba-650767ede309" />

<img width="612" height="364" alt="Second Visit" src="https://github.com/user-attachments/assets/0c6cc99f-9c4d-4d76-908f-ef2fa5e1579a" />

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Commit messages:
 - 8436: Formatting of rule descriptions with manual bullets / line breaks is gone on revisit

Changes: https://git.openjdk.org/jmc/pull/669/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=669&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8436
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jmc/pull/669.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/669/head:pull/669

PR: https://git.openjdk.org/jmc/pull/669