RFR: Use better JBS link for searches

[Sean Coffey]

Jira no longer allows searches via the main landing page (text box in top right hand corner) if you're logged out of the system

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Commit messages:
 - use better JBS link for searches

Changes: https://git.openjdk.org/guide/pull/171/files
  Webrev: https://webrevs.openjdk.org/?repo=guide&pr=171&range=00
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/guide/pull/171.diff
  Fetch: git fetch https://git.openjdk.org/guide.git pull/171/head:pull/171

PR: https://git.openjdk.org/guide/pull/171