RFR: Adding troubleshooting section to README.md [v2]

[Adam Sotona]

On Mon, 25 Jan 2021 10:32:22 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> Adam Sotona has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fixed troubleshooting section in README.md
>
> README.md line 72:
> 
>> 70: 
>> 71: micros-javac benchmarks consist of two sets of benchmarks: 
>> 72:  * `SingleJavacBenchmark` (which is parametrized) measures each single javac compilation stage in an isolated run. This benchmark is designed for exact automated performance regression testing and it takes several ours to execute completely. 
> 
> Suggestion:
> 
>  * `SingleJavacBenchmark` (which is parametrized) measures each single javac compilation stage in an isolated run. This benchmark is designed for exact automated performance regression testing and it takes several hours to execute completely.

fixed, thanks!

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PR: https://git.openjdk.java.net/jmh-jdk-microbenchmarks/pull/5