Added README.md.

README.md

@@ -1,7 +1,9 @@
-# Uppsens
 ![UppSense](http://uppsense.eu/wp-content/uploads/2017/07/cropped-logo-final-version.png)
+
 UppSense- Open Source sensor for chemical analysis based on fuoresence consisting of hardware and software. 
 ## Hardware
+The hardware consists out of three PCBs so far: An analog PCB, a digital PCB and a active Backplane.
+![Hardware Block Diagram](http://uppsense.eu/github_pics/block_smaller.png)
 ## Software
 ## Web & Contact
 www.uppsense.eu