Added documentation link to english version of wikipedia
Added documentation link to english version of wikipedia

okdas/holidays,HealthWave/holidays,ptrimble/holidays,causztic/holidays,harvesthq/holidays,ghiculescu/holidays,johankok/holidays,george-semenov/holidays,ghiculescu/holidays,alexdunae/holidays,kreintjes/holidays,seanhandley/holidays,rtcreativegroup/holidays,alexdunae/holidays,ptrimble/holidays