Updated README.md
Updated README.md

The author of this file typed "this files" where I believe he meant to type "these".
codeman869/FreeCodeCamp,systimotic/FreeCodeCamp,FreeCodeCampQuito/FreeCodeCamp,techstonia/FreeCodeCamp,jonathanihm/freeCodeCamp,raisedadead/FreeCodeCamp,FreeCodeCampQuito/FreeCodeCamp,HKuz/FreeCodeCamp,matthew-t-smith/freeCodeCamp,DusanSacha/FreeCodeCamp,raisedadead/FreeCodeCamp,techstonia/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,1111113j8Pussy420/https-github.com-raisedadead-freeCodeCamp,MiloATH/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,DusanSacha/FreeCodeCamp,Munsterberg/freecodecamp,systimotic/FreeCodeCamp,1111113j8Pussy420/https-github.com-raisedadead-freeCodeCamp,tmashuang/FreeCodeCamp,otavioarc/freeCodeCamp,Munsterberg/freecodecamp,matthew-t-smith/freeCodeCamp,sakthik26/FreeCodeCamp,no-stack-dub-sack/freeCodeCamp,TheeMattOliver/FreeCodeCamp,pahosler/freecodecamp,BrendanSweeny/FreeCodeCamp,FreeCodeCamp/FreeCodeCamp,codeman869/FreeCodeCamp,BrendanSweeny/FreeCodeCamp,FreeCodeCamp/FreeCodeCamp,BerkeleyTrue/FreeCodeCamp,no-stack-dub-sack/freeCodeCamp,sakthik26/FreeCodeCamp,MiloATH/FreeCodeCamp,TheeMattOliver/FreeCodeCamp,otavioarc/freeCodeCamp,jonathanihm/freeCodeCamp,HKuz/FreeCodeCamp,pahosler/freecodecamp,BhaveshSGupta/FreeCodeCamp,tmashuang/FreeCodeCamp,BerkeleyTrue/FreeCodeCamp