RFR: 8296335 : Fix accessibility manual test instruction [v4]

[lawrence.andrews]

> Fixed test instruction that helps the manual tester to perform actions
> 
> @shurymury

lawrence.andrews has updated the pull request incrementally with two additional commits since the last revision:

 - Fixed the review comments
 - html files with just one empty last line

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10996/files
  - new: https://git.openjdk.org/jdk/pull/10996/files/e36cecef..cac5be99

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10996&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10996&range=02-03

  Stats: 9 lines in 5 files changed: 0 ins; 9 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/10996.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10996/head:pull/10996

PR: https://git.openjdk.org/jdk/pull/10996