List of contributors has been updated

[Denis Magda]

Igniters,

I've just updated the list of Apache Ignite contributors adding the 
following guys to the list

Roman Shtykh
Igor Sapego
Ilya Lantukh
Michael Griggs
Pavel Konstantinov
Saikat Maitra
Vasiliy Sisko
Vladimir Ershov
Vladislav Jelisavcic
Nigel Westbury

Undoubtedly I've forgot to add someone else. If have contributed to 
Apache Ignite and don't see you in contributors table on this page [1] 
please let me know.

[1] https://ignite.apache.org/community/resources.html

Regards,
Denis