RFR: 8329398: Links in InetAddress class description show "#format"

[Aleksei Efimov]

This PR modifies links in the `InetAddress` class-level javadoc showed as `"#format"`.
In addition, it changes one grammatical error in the adjacent paragraph.

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Commit messages:
 - 8329398: Links in InetAddress class description show "#format"

Changes: https://git.openjdk.org/jdk/pull/20252/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20252&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329398
  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/20252.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20252/head:pull/20252

PR: https://git.openjdk.org/jdk/pull/20252