Added 3D images

README.md

 # MAMI - Matrix Mixer
 
-A set of modular PCBs that can be used to create a custom configuration for a Matrix Mixer. A Matrix mixer allows you to mix you any input to any output at the same time. If you have for example a 4x4 Matrix Mixer, you have 16 knobs with each controlling a how much of a given input signal (`1-4`) will be mixed into a given output (`A-D`):  
+A set of modular PCBs that can be used to create a custom configuration for a Matrix Mixer.  A Matrix mixer allows you to mix you any input to any output at the same time.  
+
+If you have for example a 4x4 Matrix Mixer, you have 16 knobs with each controlling a how much of a given input signal (`1-4`) will be mixed into a given output (`A-D`):  
 
 ![](images/4x4-matrix.png)   
 
@@ -11,28 +13,36 @@ For example by turning up the knob at the intersection between Input `2` and Out
 This makes Matrix mixers extremely flexible and allows for many possible combinations and use cases.
 
 
+# Modules
+
+The 4x4 matrix above consists of:
+- 2x MAMI-INPUT Module
+- 2x MAMI-OUTPUT Module
+- 4x MAMI-QUAD Module
+
+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.).
 
 ## 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).
 
-| Top  | Bottom |
-| ---- | ------ |
-| <img src="gerbers/MAMI-INPUT_Combined_Top.png" style="max-width: 200px;"> | <img src="gerbers/MAMI-INPUT_Combined_Bottom.png" style="max-width: 200px;"> |
+| Top  | Bottom | 3D |
+| ---- | ------ | --- |
+| <img src="gerbers/MAMI-INPUT_Combined_Top.png" width="200px"> | <img src="gerbers/MAMI-INPUT_Combined_Bottom.png" width="200px"> | <img src="images/3D-input.png" width="200px"> |
 
 ## 2x2 Tile Module [MAMI-QUAD]
 
 Mixes two inputs onto two outputs using 4 Potentiometers. 
 
-| Top | Bottom|
-| ---- | ----- |
-| <img src="gerbers/MAMI-QUAD_Combined_Top.png" style="max-width: 200px;"> | <img src="gerbers/MAMI-QUAD_Combined_Bottom.png" style="max-width: 200px;"> |
+| Top | Bottom | 3D |
+| ---- | ----- | --- |
+| <img src="gerbers/MAMI-QUAD_Combined_Top.png" width="200px"> | <img src="gerbers/MAMI-QUAD_Combined_Bottom.png" width="200px"> | <img src="images/3D-quad.png" width="200px"> |
 
 ## Output Module [MAMI-OUTPUT]
 
 Provides two 3.5mm Mono output jacks, with a Jumper (or switch) each row of tiles can be switched between unipolar and bipolar attenuation.
 
-| Top  | Bottom |
-| ---- | ------ |
-| <img src="gerbers/MAMI-OUTPUT_Combined_Top.png" style="max-height: 200px;"> | <img src="gerbers/MAMI-OUTPUT_Combined_Bottom.png" style="max-height: 200px;"> |
+| Top  | Bottom | 3D |
+| ---- | ------ | --- |
+| <img src="gerbers/MAMI-OUTPUT_Combined_Top.png" height="200px"> | <img src="gerbers/MAMI-OUTPUT_Combined_Bottom.png" height="200px"> | <img src="images/3D-output.png" height="200px"> |