Update doc/providers/security.rst
Update doc/providers/security.rst

Fixed spelling mistake
tcx1000/Silex,fabpot/Silex,cesarmarinhorj/Silex,mathroc/Silex,Tobion/Silex,peterkokot/Silex,CarsonF/Silex,JPry/Silex,lokhman/Silex,SpacePossum/Silex,arduanov/Silex,mmauri04/Silex,fhinkel/Silex,fhinkel/Silex,gencer/Silex,Xephi/Silex,jdreesen/Silex,cesarmarinhorj/Silex,Tobion/Silex,Tobion/Silex,jdreesen/Silex,mTorres/Silex,SpacePossum/Silex,Incognito/silex-fork,naderman/Silex,arduanov/Silex,akucherevskiy/developex_test,CarsonF/Silex,fabpot/Silex,romainneutron/Silex,Incognito/silex-fork,beealone/Silex,JPry/Silex,Xephi/Silex,romainneutron/Silex,GromNaN/Silex,naderman/Silex,SanderKnape/Silex,beealone/Silex,GromNaN/Silex,GromNaN/Silex,mathroc/Silex,akucherevskiy/developex_test,lokhman/Silex,cgsmith/Silex,akucherevskiy/developex_test,mmauri04/Silex,plotek/Silex,CarsonF/Silex,peterkokot/Silex,peterkokot/Silex,SanderKnape/Silex,plotek/Silex,cgsmith/Silex,RayRutjes/Silex,RayRutjes/Silex,mTorres/Silex,silexphp/Silex,tcx1000/Silex,romainneutron/Silex,naderman/Silex