Rename Baremetal-Blinky example to Direct Register Blinky example

Author: kegilbert

Baremetal-Blinky/README.md renamed to Direct-Register-Blinky/README.md

@@ -1,6 +1,6 @@
-## Baremetal Blinky example using Mbed OS
+## Birect Register Blinky example using Mbed OS
 
-This guide reviews the steps required to build and run a baremetal Blinky application on FRDM-K64F without using DigitalOut class and timers.
+This guide reviews the steps required to build and run a basic Blinky application on FRDM-K64F without using DigitalOut class and timers by manipulating the hardware mapped IO registers directly.
 
 Please install [Mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
 
@@ -10,7 +10,7 @@ From the command-line, import the example:
 
 ```
 git clone https://github.com/ARMmbed/mbed-os-examples-docs_only.git
-cd mbed-os-examples-docs_only/Baremetal-Blinky
+cd mbed-os-examples-docs_only/Direct-Register-Blinky
 mbed config root .
 mbed deploy
 ```