Added question to the CSS section regarding Pseudo Elements, and cleaned up the sentence structure in the SVG question to match previous sentence structures
Added question to the CSS section regarding Pseudo Elements, and cleaned up the sentence structure in the SVG question to match previous sentence structures

h5bp/Front-end-Developer-Interview-Questions,chintan9/Front-end-Developer-Interview-Questions,crenaz/Front-end-Developer-Interview-Questions,chintan9/Front-end-Developer-Interview-Questions