Add newlines back in to generated index.html files.
Add newlines back in to generated index.html files.

superstring/mdBook,superstring/mdBook,superstring/mdBook,azerupi/mdBook,azerupi/mdBook,petehayes102/mdBook,petehayes102/mdBook,superstring/mdBook,petehayes102/mdBook,petehayes102/mdBook,azerupi/mdBook,azerupi/mdBook