Code fix

[Jaanzter]

Example code is slightly wrong, cannot just copy&paste it to config.
This fixed it for me, when adding middle of other modules configs.

{
   module: "MMM-CSSBackgrounds", 
   position: "fullscreen_below",
   config: {
	theme: "snowflakes"       
	/* Choose from: particles, firefly, risingparticles animatedgradient, animatedbgcolor, slidingdiagonal, lavalamp, bokeh, bokehgrey, risingcubes, tritravelers, bubbles, bubblescoloredbg, beer, snowflakes, blobs */
	}   
  },