git: openjdk/jdk: 8279505: Update documentation for RETRY_COUNT and REPEAT_COUNT

[Aleksey Shipilev]

Changeset: bc123811
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2022-01-06 08:27:54 +0000
URL:       https://git.openjdk.java.net/jdk/commit/bc12381105ef5ba14f99304a220817e97c9a99b5

8279505: Update documentation for RETRY_COUNT and REPEAT_COUNT

Reviewed-by: erikj, serb

! doc/testing.html
! doc/testing.md