RFR(XXS) : 8200180 : fix a typo in run-test framework documentation

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8200180/webrev.00/index.html
> 3 lines changed: 0 ins; 0 del; 3 mod; 


Hi all,

could you please review this small fix for run-test framework documentation? VM_OTIONS was used instead of VM_OPTIONS at several places, the fix is obvious s/VM_OTIONS/VM_OPTIONS/ .

webrev: http://cr.openjdk.java.net/~iignatyev//8200180/webrev.00/index.html
JBS: https://bugs.openjdk.java.net/browse/JDK-8200180

Thanks,
-- Igor