RFR: 8288983: broken link in com.sun.net.httpserver.SimpleFileServer

[Jaikiran Pai]

Can I please get a review for this change which fixes the broken link in the javadoc of `SimpleFileServer`? This fixes https://bugs.openjdk.org/browse/JDK-8288983 which has the necessary context on why/when this link broke.

I used the doccheck tool https://urldefense.com/v3/__https://github.com/openjdk/doccheck__;!!ACWV5N9M2RV99hQ!LDht3vBI1d1UKy0BMsjylKuaoWnSZuenFJkewRLRs8xW2oRPFIDpHk4c6dBS-dXfi-dpBRjMEW1X10c$  (which is what identified that issue in first place), before and after the change in this PR. The issue is no longer reported after this change.

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Commit messages:
 - 8288983: broken link in com.sun.net.httpserver.SimpleFileServer

Changes: https://git.openjdk.org/jdk19/pull/64/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk19&pr=64&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8288983
  Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk19/pull/64.diff
  Fetch: git fetch https://git.openjdk.org/jdk19 pull/64/head:pull/64

PR: https://git.openjdk.org/jdk19/pull/64