diff -Nru odroid-stamper-0.1/debian/changelog odroid-stamper-0.1/debian/changelog
--- odroid-stamper-0.1/debian/changelog	2020-04-01 02:04:50.000000000 +0000
+++ odroid-stamper-0.1/debian/changelog	2020-04-02 02:02:29.000000000 +0000
@@ -1,8 +1,8 @@
-odroid-stamper (0.1-0~202003311039~ubuntu19.04.1) disco; urgency=low
+odroid-stamper (0.1-0~202004010236~ubuntu19.04.1) disco; urgency=low
 
   * Auto build.
 
- -- Dongjin Kim <tobetter@gmail.com>  Wed, 01 Apr 2020 02:04:50 +0000
+ -- Dongjin Kim <tobetter@gmail.com>  Thu, 02 Apr 2020 02:02:29 +0000
 
 odroid-stamper (0.1) experimental; urgency=medium
 
diff -Nru odroid-stamper-0.1/debian/git-build-recipe.manifest odroid-stamper-0.1/debian/git-build-recipe.manifest
--- odroid-stamper-0.1/debian/git-build-recipe.manifest	2020-04-01 02:04:50.000000000 +0000
+++ odroid-stamper-0.1/debian/git-build-recipe.manifest	2020-04-02 02:02:29.000000000 +0000
@@ -1,2 +1,2 @@
-# git-build-recipe format 0.4 deb-version {debupstream}-0~202003311039
-lp:~tobetter/odroid-image/+git/odroid-stamper git-commit:ec26220676834293128c363b41a2924fd8e9904f
+# git-build-recipe format 0.4 deb-version {debupstream}-0~202004010236
+lp:~tobetter/odroid-image/+git/odroid-stamper git-commit:6ad0c993ca24ebaa743b4a01768559b0a3cb3df6
diff -Nru odroid-stamper-0.1/README.md odroid-stamper-0.1/README.md
--- odroid-stamper-0.1/README.md	2020-04-01 02:04:50.000000000 +0000
+++ odroid-stamper-0.1/README.md	2020-04-02 02:02:29.000000000 +0000
@@ -1,8 +1,29 @@
 # ODROID-STAMPER
 
-**ODROID-STAMPER** is a shell script tool to generate Ubuntu OS image for ODROID SBCs, currently it only support ODROID-XU4 and ODROID-N2.
+**ODROID-STAMPER** is a tool to build a minimal Ubuntu image to run on Hardkernel's ODROID SBCs.
 
-    $ sudo apt install git wget dialog pv lynx
-    $ git clone https://github.com/tobetter/odroid-stamper.git
-    $ cd odroid-stamper
-    $ sudo ./odroid-stamper
+## Supported boards:
+ - ODROID-N2
+ - ODROID-XU4
+ - ODROID-C2
+ - ODROID-C4
+ - ODROID-GO2
+ ## Supported Ubuntu Distro version
+ - Ubuntu Bionic Beaver (18.04)
+ - Ubuntu Disco Dingo (19.04)
+ - Ubuntu Focal Fossa (20.04)
+
+# Installing a package on Ubuntu.
+> $ sudo add-apt-repository ppa:tobetter/ppa \
+$ sudo apt-get update \
+$ sudo apt install odroid-stamper \
+$ mkdir work \
+$ cd work \
+$ sudo odroid-stamper
+
+# Installing from a git source tree
+> $ sudo apt install git wget dialog pv lynx \
+$ git clone https://github.com/tobetter/odroid-stamper.git \
+$ cd odroid-stamper \
+$ export ODROID_STAMPER_CHECKOUT=$PWD \
+$ sudo ./odroid-stamper