diff --git a/doc/tutorials/create-up2-images.sh b/doc/tutorials/create-up2-images.sh
index 445ec6c16..9ba7e74af 100755
--- a/doc/tutorials/create-up2-images.sh
+++ b/doc/tutorials/create-up2-images.sh
@@ -1,7 +1,8 @@
+#!/bin/bash
+
 # Copyright (C) 2018 Intel Corporation.
 # SPDX-License-Identifier: BSD-3-Clause
 
-#!/bin/bash
 
 usage() {
     echo "Usage: $0 [options]"
@@ -9,7 +10,7 @@ usage() {
     echo "options:"
     echo "--mirror-url default: 'https://cdn.download.clearlinux.org/releases/', for swupd"
     echo "--acrn-code-path: Specify acrn-hypervisor code path for ACRN SBL build. If acrn-sbl-path is provided, acrn-code-path will be ignored"
-    echo "--acrn-sbl-path: Specify ACRN SBL binary path. If acrn-sbl-path isn't provided, acrn_code_path will be must option"
+    echo "--acrn-sbl-path: Specify ACRN SBL binary path. If acrn-sbl-path isn't provided, --acrn-code-path must be set"
     echo "--clearlinux-version: mandatory option for sos image build"
     echo "--images-type: Specify the type of OS image to build (sos/laag/all, default value is all)"
     echo "--sign-key: Specify the debug key for signing, default value provided"
diff --git a/doc/tutorials/launch_uos.sh b/doc/tutorials/launch_uos.sh
old mode 100644
new mode 100755
index 4c69b5d38..0140f665b
--- a/doc/tutorials/launch_uos.sh
+++ b/doc/tutorials/launch_uos.sh
@@ -1,8 +1,9 @@
+#!/bin/bash
+
+
 # Copyright (C) 2018 Intel Corporation.
 # SPDX-License-Identifier: BSD-3-Clause
 
-#!/bin/bash
-
 
 kernel_version=$(uname -r | awk -F. '{ printf("%d.%d", $1,$2) }')
 
diff --git a/doc/tutorials/using_sbl_on_up2.rst b/doc/tutorials/using_sbl_on_up2.rst
index b1fac9f63..8ef2b55b1 100644
--- a/doc/tutorials/using_sbl_on_up2.rst
+++ b/doc/tutorials/using_sbl_on_up2.rst
@@ -9,7 +9,8 @@ SBL instead of UEFI to boot UP2 board.
 Slim Bootloader is an open-source boot firmware solution,
 built from the ground up to be secure, lightweight, and highly
 optimized while leveraging robust tools and libraries from
-the EDK II framework.
+the EDK II framework. For more information about booting ACRN with SBL,
+please visit `<https://slimbootloader.github.io/how-tos/boot-acrn.html>`_.
 
 .. image:: images/sbl_boot_flow_UP2.png
    :align: center
@@ -174,7 +175,7 @@ SOS and LaaG Installation
        ls /dev/ttyUSB*
        /dev/ttyUSB0
 
-#. Connect to board via ``minicom``, and use ``/dev/ttyUSB0`` for exmaple:
+#. Connect to board via ``minicom``, and use ``/dev/ttyUSB0`` for example:
 
    .. code-block:: none
 
@@ -257,7 +258,7 @@ SOS and LaaG Installation
        USB for fastboot transport layer selected
 
 
-#. When UP2 board is fastboot mode, you should be able 
+#. When UP2 board is in fastboot mode, you should be able 
    see the device in Platform Flash Tool. Select the 
    file ``flash_LaaG.json`` and modify ``Configuration``
    to ``SOS_and_LaaG``. Click ``Start to flash`` to flash images.