Revert "Remove line referencing sourcing .env in README since we have Dotenv"
Revert "Remove line referencing sourcing .env in README since we have Dotenv"

We still need this line until rake tasks are written to deal with
database migrations.

This reverts commit 469bf6bebb74327418123f92a9ff244ccdacac89.

simplyaubs/sinatra_crud_races,seishingithub/sinatra_crud_foods,Kel4545/Assessment-7,Lindsay-R/g3-assessment-week-7,JennyAllar/food_crud,gusk/sinatra-postgres,seishingithub/sinatra_crud_dogs,mikegehard/user-authentication-from-scratch,mikekauffman/spga-1,bscharm/g3-assessment-week-7,ShelllKell/g3-assessment-week-7,sethgeyer/g3-assessment-week-7,mijikim/assessment-week7,idknox/g3-assessment-week-7,gSchool/sinatra-crud-demo,seishingithub/crud_demo,Barteezy/g3-assessment-week-7,vandosant/sinatra-postgres-starter-app,hillrw3/g3-assessment-week-7,simplyaubs/sinatra_crud_cars,simplyaubs/sinatra_crud_demo,cpbuckingham/g3-assessment-week-7,seanmsmith23/assessment-7,mikegehard/sinatra-postgres-starter-app,JennyAllar/computers_crud,erisfully/g3-assessment-week-7-review,A-Legg/g3-assessment-week-7,JennyAllar/shoes_crud,simplyaubs/sinatra_crud_guitars,zbunde/user-authentication-from-scratch,JennyAllar/practice-sinatra-crud-2,lukemccomb/g3-assessment-week-7,JennyAllar/practice_sinatra_crud,erisfully/g3-assessment-week-7,NatalieGregory/g3-assessment-week-7,simplyaubs/sinatra_crud_flowers,jessicadanaowens/g3-assessment-week-7,amcritchie/g3-assessment-week-7,McBainCO/g3-assesment-week-7,JordyOne/g3-assessment-week-7-,seishingithub/sinatra_crud_colors,JennyAllar/sinatra-postgres-starter-app-crud,EvanTedesco/sinatra_practice,walkrick/g3-assessment-week-7,laynemcnish/g3-assessment-week-7,pgrunde/g3-assessment-week-7,marthaberner/shoes-sinatra-crud,ShelllKell/g3-assessment-week-7,lmoehn/crud_demo,simplyaubs/sinatra_crud_dogs