Re: RFR: 8221894: Add comments for docker tests in the test doc

[Jie Fu]

Hi Erik,

Thank you so much for your review and suggestions.
Hello Jie,
Looks good, just some grammatical notes on the first paragraph. Here 
is my suggestion:

Docker tests with default parameters may fail on OS versions newer 
than oraclelinux 7.6.
For example, they pass on Ubuntu 16.04 but fail on Ubuntu 18.04 if run 
like this:

OK. I will update it next Monday since tomorrow is a public holiday in 
China.
Thanks.

Best regards,
Jie