Add Example 8x8 setup (cabled)

README.md

@@ -22,6 +22,10 @@ The 4x4 matrix above consists of:
 
 The modules are designed in a way they can be connected via wires or jumpers to each other, so multiple configurations are possible (e.g. 2x2, 2x4, 4x2, 8x8, 10x6 etc.).
 
+Here an example 8x8 setup consisting of 4 Input modules, 4 Output modules and 16 Tiles:
+
+![Example 8x8 setup consisting of 4 Input modules, 4 Output modules and 16 Tiles](images/8x8_pcbs.png)
+
 ## Input Module [MAMI-INPUT]
 
 The Input Module has two 3.5mm Mono Input Jacks and two (On)-Off-On Switches that allows muting individual inputs (or momentarily/permanently switching them on).