mbed os example for Wislink RAK2011

Revision:
28:232da3ce8a88
Parent:
26:348eec457e58
Child:
29:f1f568035f90
--- a/README.md	Thu Nov 22 10:30:32 2018 +0000
+++ b/README.md	Fri Nov 23 10:00:30 2018 +0000
@@ -73,7 +73,6 @@
 
 ```"target_overrides": {
         "*": {
-            "target.features_add": ["LWIP"],
             "mbed-trace.enable": true,
 ```
 
@@ -98,6 +97,19 @@
 
 ## Compiling the application
 
+The master branch is for daily development and it uses the latest mbed-os/master.
+
+To use the latest stable version update to a Mbed OS release tag, for example:
+
+```
+mbed releases
+ * mbed-os-5.10.4
+   ...
+mbed update mbed-os-5.10.4
+```
+
+You may need to use `--clean` option to discard your local changes (use with caution).
+
 Use Mbed CLI commands to generate a binary for the application. For example, in the case of GCC, use the following command:
 
 ```sh