RFR: 8359123: Misleading examples in jmod man page [v4]

[Ana Maria Mihalceanu]

> Please review my PR. This PR includes the following:
> 
> - [x] Fix a small typo in a word and copyright.
> - [x] Enhance description for `--target-platform`.
> - [x] Rearrange `jmod create` example from basic to complex.

Ana Maria Mihalceanu has updated the pull request incrementally with one additional commit since the last revision:

  Update commands and description according to review.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25772/files
  - new: https://git.openjdk.org/jdk/pull/25772/files/d52f2ce2..27052ebb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25772&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25772&range=02-03

  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/25772.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25772/head:pull/25772

PR: https://git.openjdk.org/jdk/pull/25772