Better illustrate 5th combination

Planning/input-options.txt

@@ -8,6 +8,6 @@ Cells - Size - Radii 1		-> Used to define simple lattice structures
 Cells - Size - Radii n		-> Used to define cartesian lattice with varying radii
 Size - Radii 1 - Positions 	-> Used to define a lattice where all radii are equal
 Size - Radii n - Positions	-> Used to define a generic lattice with varying radii
-Cells 5 5 1 - Size - Radii 250 - Positions 250	-> Used to define a cartesian lattice, but the number of radii does not equal the 
+Cells i*j*k=n - Size - Radii m - Positions m	-> Used to define a cartesian lattice, but the number of radii does not equal the 
 							number of cells. Here the radii are projected onto a coarser grid and averaged
 							to obtain a coarser lattice.
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