Update README.md with more detailed instructions

Author: mlnx

README.md

@@ -2,28 +2,69 @@
 
 This applications is the simplest one to utilizes our Mesh networking stack. All it does is join the unsecure *6LoWPAN-ND* network.
 
+## Setup
+
+### Download the application
+
+```
+mbed import mbed-os-example-mesh-minimal
+cd mbed-os-example-mesh-minimal
+```
+
+### Optional: change channel settings
+
 See the file `mbed_app.json` for an example of defining an IEEE 802.15.4 channel to use.
 
-## Changing the radio driver
+### Compile the application
+
+```
+mbed compile -m K64F -t GCC_ARM
+```
+
+A binary should be generated at the end of the build process.
+
+### Connect the RF shield to the board
+
+By default we are using the Atmel AT86RF233 which can be purchased [here](https://firefly-iot.com/product/firefly-arduino-shield-2-4ghz/).
+Place the shield on top of your board and power it up.
+
+### Program the target
 
-In order to run a 6LoWPAN-ND network, you need a working RF driver for Nanostack. This example uses the Atmel AT86RF233. 
+Drag and drop to the target to program the application.
 
-To change drivers:
+### Update the firmware of the Border Router
 
-__1__
+You can read the instructions on updating the firmware of your K64F working as 6LoWPAN Border Router [here](https://github.com/ARMmbed/mbed-os-example-client#mbed-gateway).
+
+Please do not forget to connect the Ethernet cable between the Border Router and your home/office router. Then power up the board.
+
+## Testing
+
+Once both the Border Router and the target is up and running, then you can verify its correct behaviour. Open a serial console and see the IP address obtained by the device. For example:
 
 ```
-mbed remove atmel-rf-driver
+connected. IP = 2001:db8:a0b:12f0::1
 ```
 
-__2__
+You can use this IP address to `ping` from your PC and verify that the connection is working correctly.
+
+### Optional: changing the radio driver
+
+In order to run a 6LoWPAN-ND network, you need a working RF driver for Nanostack. This example uses the Atmel AT86RF233 by default. 
 
+To change the RF driver:
+
+1. Uninstall the default driver:
 ```
-mbed add <your RF driver address>
+mbed remove atmel-rf-driver
 ```
 
-__3__
+2. Install the new driver:
+```
+mbed add <your RF driver address>
+```
 
+3. Recompile your application:
 ```
 `mbed compile`
 ```