Add FAQ entry for empty-line-before rules
Add FAQ entry for empty-line-before rules

Ref: #1848

gucong3000/stylelint,stylelint/stylelint,gaidarenko/stylelint,gucong3000/stylelint,stylelint/stylelint,gucong3000/stylelint,heatwaveo8/stylelint,hudochenkov/stylelint,hudochenkov/stylelint,gaidarenko/stylelint,heatwaveo8/stylelint,hudochenkov/stylelint,heatwaveo8/stylelint,gaidarenko/stylelint,stylelint/stylelint,stylelint/stylelint