Integrated: 7904131: Update documentation to match version 9.1

[Leonid Kuskov]

[CODETOOLS-7904131](https://bugs.openjdk.org/browse/CODETOOLS-7904131) Documents needs to be updated accordingly.

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Commit messages:
 - CODETOOLS-7904131: Update documentation to match version 9.1

Changes: https://git.openjdk.org/asmtools/pull/94/files
  Webrev: https://webrevs.openjdk.org/?repo=asmtools&pr=94&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7904131
  Stats: 1232 lines in 4 files changed: 179 ins; 912 del; 141 mod
  Patch: https://git.openjdk.org/asmtools/pull/94.diff
  Fetch: git fetch https://git.openjdk.org/asmtools.git pull/94/head:pull/94

PR: https://git.openjdk.org/asmtools/pull/94