devices: Correct NOTE directive in devices documentation

Earlier documentation had an incorrect NOTE annotation. Use the right
.. note:: directive that renders correctly. Also need to use .. code::
directive.

Change-Id: Id763b556e7af510a6927100c3d3a8128ec354d3d
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
diff --git a/docs/devices/rb3.rst b/docs/devices/rb3.rst
index 90db518..f4309b4 100644
--- a/docs/devices/rb3.rst
+++ b/docs/devices/rb3.rst
@@ -27,11 +27,12 @@
 For flashing instructions checkout
 `96boards DB845c recovery page <https://www.96boards.org/documentation/consumer/dragonboard/dragonboard845c/installation/board-recovery.md.html>`_.
 
-NOTE:
+.. note::
+   You can also update bootloader binaries by running **flashall** script, which is
+   a part of the vendor package of the RB3 AOSP build target. Boot in fastboot mode
+   and run following command from your HOST machine:
 
-You can also update bootloader binaries by running **flashall** script, which is
-a part of the vendor package of the RB3 AOSP build target. Boot in fastboot mode
-and run following command from your HOST machine::
+.. code::
 
    git clone https://gerrit.devboardsforandroid.linaro.org/linaro-vendor-package
    cd src/db845c/dragonboard-845c-bootloader-ufs-aosp/
diff --git a/docs/devices/rb5.rst b/docs/devices/rb5.rst
index cd29547..b9e3577 100644
--- a/docs/devices/rb5.rst
+++ b/docs/devices/rb5.rst
@@ -25,11 +25,12 @@
 
 For flashing instructions checkout `96boards RB5 recovery page <https://www.96boards.org/documentation/consumer/dragonboard/qualcomm-robotics-rb5/installation/board-recovery.md.html>`_.
 
-NOTE:
+.. note::
+   You can also update bootloader binaries by running flashall script, which is
+   a part of the vendor package of RB5 AOSP build target. Boot in fastboot mode
+   and run following command from your HOST machine:
 
-You can also update bootloader binaries by running flashall script, which is
-a part of the vendor package of RB5 AOSP build target. Boot in fastboot mode
-and run following command from your HOST machine::
+.. code::
 
    git clone https://gerrit.devboardsforandroid.linaro.org/linaro-vendor-package
    cd src/rb5/rb5-bootloader-ufs-aosp/