What is the formatting code for posting two pictures side by side as opposed to one right after the other?

Just down load two pictures, then place the courser in front of the second one and backspace until it is next to the first one you down loaded.

So it will look like this...

[photo 1 code] [photo 2 code]

Not like this...
[photo 1]
[photo 2]

You can also use the "Preview" button to make sure the photos sit how you want.

Remember that the photos may wrap to the next line depending on the size of the viewer's screen and their zoom settings. For example, on my older PC, only 3 photos fit on a line; my newer devices have a wider screen and so 4 photos fit on a line.