changes done

proposals/himanshuk.rst

@@ -59,6 +59,7 @@ as below is simple dts example for accesing GPIO's for blink LED's.
 since P9_12 supports the GPIO's functinoality as output signal. 
 
 .. code-block::
+    
     /{
         compatible = "ti,BeaglBbone-Black";
         part-number = "DM-GPIO-TEST";
@@ -94,7 +95,7 @@ As in librobotcontrol there is no robotic cape dtb support for beaglebone-AI64 w
 How it will be possible, see an example for blink LEDs via device tree ovelay which is for GPIO's:
 
 .. code-block:: 
-    
+
              &{/chosen} {
 	overlays {
 		BONE-LED_P8_03 = __TIMESTAMP__;