Update how-to-setup-freecodecamp-locally.md
Update how-to-setup-freecodecamp-locally.md

You need to setup your .env file before bootstrapping, so I updated the docs to clarify this.
raisedadead/FreeCodeCamp,HKuz/FreeCodeCamp,jonathanihm/freeCodeCamp,jonathanihm/freeCodeCamp,HKuz/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,otavioarc/freeCodeCamp,BhaveshSGupta/FreeCodeCamp,FreeCodeCamp/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,otavioarc/freeCodeCamp,raisedadead/FreeCodeCamp,pahosler/freecodecamp,FreeCodeCamp/FreeCodeCamp,pahosler/freecodecamp