Update ecg_kit_assembly.md

en/ecg_kit_assembly.md

@@ -14,19 +14,19 @@ Slide the big shrinking tube over the USB cable
 
 Separate the wires as shown in the picture
 
-![usb wire meanings](/media/ecg/wire-meanings.jpg)
+[![usb wire meanings](/media/ecg/wire-meanings.jpg)](/media/ecg/wire-meanings.jpg)
 
 
 Cut off all wires ecxept for orange and purple
 
-![cut off unused wires](/media/ecg/cut-off-wires.jpg)
+[![cut off unused wires](/media/ecg/cut-off-wires.jpg)](/media/ecg/cut-off-wires.jpg)
 
 
 Move the two small shrinking tubes over the ECG wires
 
 Solder the ECG wires to the USB wires as shown in the pictures
 
-![solder ecg usb wires](/media/ecg/3-solder.jpg)
+[![solder ecg usb wires](/media/ecg/3-solder.jpg)](/media/ecg/3-solder.jpg)
 
 
 
@@ -34,26 +34,26 @@ Test your ECG setup on your Card10 prior the next step
 
 Slide the small shrinking tubes over the soldering connections and apply hot air (e.g. lighter)
 
-![apply small heat shrink tubes](/media/ecg/4-add-heat-shrink.jpg)
+[![apply small heat shrink tubes](/media/ecg/4-add-heat-shrink.jpg)](/media/ecg/4-add-heat-shrink.jpg)
 
-![shrink small heat shrink tubes](/media/ecg/5-shrik-this.jpg)
+[![shrink small heat shrink tubes](/media/ecg/5-shrik-this.jpg)](/media/ecg/5-shrik-this.jpg)
 
 
 
 Slide the bigger shrinking tube over the two small ones and also shrink it
 
-![apply large heat shrink tube](/media/ecg/large-heat-shrink.jpg)
+[![apply large heat shrink tube](/media/ecg/large-heat-shrink.jpg)](/media/ecg/large-heat-shrink.jpg)
 
 
 Have fun and hack ECG stuff
 
-![ecg fertig](/media/ecg/fertig.jpg)
+[![ecg fertig](/media/ecg/fertig.jpg)](/media/ecg/fertig.jpg)
 
 
 
 ### Usage
 
-![ecg usage](/media/ecg/application.jpg)
+[![ecg usage](/media/ecg/application.jpg)](/media/ecg/application.jpg)
 
 
 #### ECG