diff --git a/doc/tutorials/using_celadon_as_uos.rst b/doc/tutorials/using_celadon_as_uos.rst
index 8c24fdfef..3ec725da8 100644
--- a/doc/tutorials/using_celadon_as_uos.rst
+++ b/doc/tutorials/using_celadon_as_uos.rst
@@ -1,22 +1,22 @@
.. _using_celadon_as_uos:
-Using Celadon as User OS
-########################
+Using Celadon as the User OS
+############################
`Celadon `_ is an open source Android* software reference stack
for Intel architecture. It builds upon a vanilla Android stack and incorporates open sourced components
that are optimized for the hardware. This tutorial describes how to run Celadon as the User OS
-on the ACRN hypervisor. We are using Kaby Lake-based NUC (model NUC7i7DNHE) in this tutorial.
+on the ACRN hypervisor. We are using the Kaby Lake-based NUC (model NUC7i7DNHE) in this tutorial.
Prerequisites
*************
-* Ubuntu 18.04 with at least 150G free disk space
-* Intel Kaby Lake NUC7ixDNHE ( Reference Platforms: :ref:`ACRN supported platforms ` )
+* Ubuntu 18.04 with at least 150G free disk space.
+* Intel Kaby Lake NUC7ixDNHE (Reference Platforms: :ref:`ACRN supported platforms `).
* BIOS version 0059 or later firmware should be flashed on the NUC system,
- and the ``Device Mode`` option is selected on the USB category of the Devices tab,
+ and the ``Device Mode`` option is selected on the USB category of the Devices tab
in order to enable USB device function through the internal USB 3.0 port header.
-* Two HDMI monitors
+* Two HDMI monitors.
* A USB dongle (e.g. `Dawson Canyon USB 3.0 female
to 10-pin header cable `_)
is optional if you plan to use the ``adb`` and ``fastboot`` tools in the Celadon User OS for debugging.
@@ -31,9 +31,8 @@ Build Celadon from source
`_ guide
to set up the Celadon project source code.
- .. note:: The master branch is based on Google Android 10 Pre-Production Early Release.
- We should use following command to specify a stable Celadon branch based on the Google
- Android 9 source code in order to apply those patches in the :ref:`ACRN patch list`::
+ .. note:: The master branch is based on the Google Android 10 pre-Production Early Release.
+ Use the following command to specify a stable Celadon branch based on the Google Android 9 source code in order to apply those patches in the :ref:`ACRN patch list`::
$ repo init -u https://github.com/projectceladon/manifest.git -b celadon/p/mr0/master -m stable-build/ww201925_H.xml
@@ -45,7 +44,7 @@ Build Celadon from source
.. note:: You can run ``lunch`` with no arguments to manually choose your Celadon build variants.
-#. Download these additional patches and apply each one individually with the command::
+#. Download these additional patches and apply each one individually with the following command::
$ git apply
@@ -77,10 +76,10 @@ Build Celadon from source
in order to build the source code with parallel tasks. The Celadon gptimage will be
generated to ``out/target/product/cel_apl/cel_apl_gptimage.img``
-Steps for Using Celadon as User OS
-**********************************
+Steps for Using Celadon as the User OS
+**************************************
-#. Follow :ref:`getting-started-apl-nuc` to boot the "ACRN Service OS" based on Clear Linux 29880.
+#. Follow :ref:`getting-started-apl-nuc` to boot the ACRN Service OS based on Clear Linux 29880.
#. Prepare dependencies on your NUC::
@@ -92,7 +91,7 @@ Steps for Using Celadon as User OS
# sh launch_android.sh
#. You will see the shell console from the terminal and the Celadon GUI on the secondary monitor
- after system boots. You can check the build info using the ``getprop`` command in shell console:
+ after the system boots. You can check the build info using the ``getprop`` command in the shell console:
.. code-block:: bash