update readme files

Raspberry Pi Image/readme.md

@@ -0,0 +1,4 @@
+#### **Raspberry Pi Image**
+Here you can find an image of the Raspberry Pi SD-Card, which i have used for testing. The COM-Port and GPIO setup in this image is already finished and ready to use.
+
+On the Wiki Page you can find informations about: "How to copy the image to a SD-Card" and about "How to setup the COM-Port and GPIOs" on your own Raspberry-Distribution.

Xcom_Test_Program/readme.md

@@ -1 +1,4 @@
-#### Informations will be added soon
+#### **Xcom_Test_Program**
+This program demonstrate the functionality of the Xcom_API-class. To use this program a Raspberry Pi with a Raspicomm extender module and a RS232-bridge called Xcom-232i is required. 
+
+More information about the hardware-setup and the usage of the program you can find on the Wiki-Page.

readme.md

@@ -19,6 +19,11 @@ This program demonstrate the functionality of the Xcom_API-class. To use this pr
 
 More information about the hardware-setup and the usage of the program you can find on the Wiki-Page.
 
+#### **Raspberry Pi Image**
+Here you can find an image of the Raspberry Pi SD-Card, which i have used for testing. The COM-Port and GPIO setup in this image is already finished and ready to use.
+
+On the Wiki Page you can find informations about: "How to copy the image to a SD-Card" and about "How to setup the COM-Port and GPIOs" on your own Raspberry-Distribution.
+
 ## <p>&#x1F4BB; Hardware-Configuration</p>  
 #### **Hardware Information**