Updated README.md after findings of 2018-03-02.

README.md

@@ -16,11 +16,19 @@ The firmware for the ATtiny is written as an Arduino sketch using the
 for generating pseudorandom numbers and transforms them to the needed
 range using the gcc uniform_int_dist c++std implementation.
 
-Flashing the firmware can be done using a usual Arduino programmed as an
-ISP with the ArduinoISP example sketch included in the IDE. Then the Arduino
-can be connected for example via its ICSP pins:
+Flashing the firmware can be done using a usual Arduino (UNO in our case)
+programmed as an ISP with the ArduinoISP example sketch included in the IDE.
 
-![ICSP]
+Then the Programmer (Arduino) should be connected to the Target like this:
+
+| **Programmer's pins** | **Target's pins** |
+|:---------------------:|:-----------------:|
+| 13                    | SCK               |
+| 12                    | MISO              |
+| 11                    | MOSI              |
+| 10                    | RESET             |
+| 5V                    | VCC               |
+| GND                   | GND               |
 
 The pins on our TinyFinger board are from left to right:
 GND, MISO, VCC, SCK, MOSI, RESET.
@@ -32,4 +40,3 @@ Cura after exporting the model as an stl file.
 
 [ATTinyCore]: https://github.com/SpenceKonde/ATTinyCore
 [linear congruential generator]: https://en.wikipedia.org/wiki/Linear_congruential_generator
-[ICSP]: https://www.arduino.cc/en/uploads/Tutorial/ICSPHeader.jpg "Arduino's ICSP pins"