Update baremetal_example.md to refer to baremetal_application.md

Author: LDong-Arm

docs/program-setup/bare_metal/baremetal_example.md

@@ -1,13 +1,7 @@
 # Bare metal example
 
-To enable Mbed OS bare metal, create an `mbed_app.json` with the following contents:
+For a guide on creating a bare metal application, see [Creating a bare metal application](bare_metal_usage.md#creating-a-bare-metal-application).
 
-```
-{
-    "requires": ["bare-metal"]
-}
-```
-
-To learn about using the bare metal profile, please see the Blinky bare metal example:
+The following Blinky bare metal example uses [Bare metal APIs](bare_metal_api.md#bare-metal-apis):
 
 [![View code](https://www.mbed.com/embed/?url=https://github.com/armmbed/mbed-os-example-blinky-baremetal/)](https://github.com/armmbed/mbed-os-example-blinky-baremetal/blob/master/main.cpp)