fix incorrect options in example database.yml
fix incorrect options in example database.yml

nilclass/echosocial,nilclass/echosocial,riseuplabs/crabgrass,ajturner/crisiscommons,geoiq/digitalgazette,ajturner/crisiscommons,geoiq/digitalgazette,adammck/crabgrass,riseuplabs/crabgrass,adammck/crabgrass,riseuplabs/crabgrass,riseuplabs/crabgrass,nilclass/echosocial,adammck/crabgrass,riseuplabs/crabgrass,ajturner/crisiscommons,geoiq/digitalgazette,nilclass/echosocial,geoiq/digitalgazette,adammck/crabgrass,ajturner/crisiscommons,riseuplabs/crabgrass,riseuplabs/crabgrass