Updated Readme to highlight required Arm IP to build NanoSoC

README.md

-# nanosoc
+# NanoSoC Tech
 
+## IP Requirements List
+Top build a NanoSoC System, additional Arm Licensed IP is required. The IP that is requried is the following:
+- Arm Cortex-M0 
+- Arm Corstone-101 
+- Arm DMA-230 (PL230)
 
+If you are unable to license the Cortex-M0, you may be able to get access to the Arm Cortex-M0 designstart which contains an obfuscated version of the Cortex-M0 processor along with the Corstone-101 subsystem.  
 
 ## Getting started