Merge pull request #12 from abhijit-mahajani-imgtec/update_readme

Update README.md to remove revision information

Author: nikhil-zinjurde-imgtec

README.md

@@ -6,14 +6,16 @@ How To Compile
 
 Assuming you have creator-contiki source code with directories constrained-os, packages/button-sensor, packages/libobjects and packages/AwaLWM2M
 
+To build with TI CC2520 6lowpan driver
 ```
 $ cd button-sensor
-$ make TARGET=mikro-e
+$ make TARGET=mikro-e USE_CC2520=1
 ```
 
-This will generate hex file which can be flashed onto the MikroE clicker.
+To build with Cascoda CA8210 6lowpan driver
+```
+$ cd button-sensor
+$ make TARGET=mikro-e USE_CA8210=1
+```
 
-## Revision History
-| Revision  | Changes from previous revision |
-| :----     | :------------------------------|
-| 0.9.0     | External Beta Trial Release    |
+This will generate hex file which can be flashed onto the MikroE clicker.