Update readme.
Update readme.

Add info about unittests.

sivakuna-aap/superdesk,petrjasek/superdesk,ioanpocol/superdesk-ntb,sivakuna-aap/superdesk,gbbr/superdesk,superdesk/superdesk-aap,Aca-jov/superdesk,mdhaman/superdesk-aap,fritzSF/superdesk,plamut/superdesk,petrjasek/superdesk,sjunaid/superdesk,marwoodandrew/superdesk-aap,pavlovicnemanja/superdesk,sivakuna-aap/superdesk,akintolga/superdesk,pavlovicnemanja/superdesk,sivakuna-aap/superdesk,sivakuna-aap/superdesk,hlmnrmr/superdesk,hlmnrmr/superdesk,mdhaman/superdesk-aap,petrjasek/superdesk-server,superdesk/superdesk-aap,superdesk/superdesk-ntb,vied12/superdesk,pavlovicnemanja92/superdesk,superdesk/superdesk-ntb,petrjasek/superdesk,pavlovicnemanja92/superdesk,verifiedpixel/superdesk,vied12/superdesk,thnkloud9/superdesk,amagdas/superdesk,marwoodandrew/superdesk,petrjasek/superdesk-ntb,marwoodandrew/superdesk-aap,superdesk/superdesk,liveblog/superdesk,mugurrus/superdesk,mdhaman/superdesk,ioanpocol/superdesk,ancafarcas/superdesk,plamut/superdesk,superdesk/superdesk-aap,superdesk/superdesk,superdesk/superdesk-ntb,akintolga/superdesk,darconny/superdesk,petrjasek/superdesk,fritzSF/superdesk,marwoodandrew/superdesk,fritzSF/superdesk,superdesk/superdesk,ioanpocol/superdesk-ntb,verifiedpixel/superdesk,Aca-jov/superdesk,amagdas/superdesk,hlmnrmr/superdesk,verifiedpixel/superdesk,vied12/superdesk,mugurrus/superdesk,darconny/superdesk,mdhaman/superdesk-aap,plamut/superdesk,marwoodandrew/superdesk,petrjasek/superdesk-ntb,marwoodandrew/superdesk-aap,pavlovicnemanja/superdesk,ioanpocol/superdesk,sjunaid/superdesk,vied12/superdesk,Aca-jov/superdesk,mdhaman/superdesk,liveblog/superdesk,petrjasek/superdesk-ntb,verifiedpixel/superdesk,akintolga/superdesk-aap,superdesk/superdesk-ntb,liveblog/superdesk,marwoodandrew/superdesk,mdhaman/superdesk,sjunaid/superdesk,superdesk/superdesk-aap,liveblog/superdesk,amagdas/superdesk,verifiedpixel/superdesk,pavlovicnemanja/superdesk,liveblog/superdesk,fritzSF/superdesk,akintolga/superdesk-aap,ioanpocol/superdesk-ntb,marwoodandrew/superdesk-aap,petrjasek/superdesk-server,petrjasek/superdesk-ntb,darconny/superdesk,marwoodandrew/superdesk,amagdas/superdesk,thnkloud9/superdesk,akintolga/superdesk,gbbr/superdesk,akintolga/superdesk,mdhaman/superdesk-aap,akintolga/superdesk-aap,vied12/superdesk,thnkloud9/superdesk,mugurrus/superdesk,akintolga/superdesk-aap,ancafarcas/superdesk,akintolga/superdesk,gbbr/superdesk,amagdas/superdesk,fritzSF/superdesk,pavlovicnemanja92/superdesk,superdesk/superdesk,pavlovicnemanja92/superdesk,pavlovicnemanja92/superdesk,ioanpocol/superdesk,plamut/superdesk,ancafarcas/superdesk,plamut/superdesk