diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4019de..85231a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0]
+
 ### Added
 
 - PMBS (Packman Build Service) support [#5](https://github.com/openSUSE-zh/opi/issues/5)
@@ -64,7 +66,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Choose package and install
 - Keep or remove repository after installation
 
-[Unreleased]: https://github.com/openSUSE-zh/opi/compare/v0.3.2...HEAD
+[Unreleased]: https://github.com/openSUSE-zh/opi/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/openSUSE-zh/opi/compare/v0.3.2...v0.4.0
 [0.3.2]: https://github.com/openSUSE-zh/opi/compare/v0.3.1...v0.3.2
 [0.3.1]: https://github.com/openSUSE-zh/opi/compare/v0.3.0...v0.3.1
 [0.3.0]: https://github.com/openSUSE-zh/opi/compare/v0.2.0...v0.3.0
diff --git a/README.md b/README.md
index 29b1042..39ca943 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,11 @@
 
 **O**BS **P**ackage **I**nstaller
 
+Search and install almost all packages available for openSUSE and SLE:
+
+1. openSUSE Build Service
+2. Packman
+
 ## System Requirements
 
 - openSUSE Tumbleweed, openSUSE Leap 42.1+, SLE 12+
@@ -13,8 +18,24 @@
 
 ## Install
 
+### openSUSE Tumbleweed
+
+```
+sudo zypper install opi
 ```
-sudo zypper addrepo https://download.opensuse.org/repositories/home:guoyunhe/openSUSE_Tumbleweed/home:guoyunhe.repo
+
+## Leap and SLE
+
+```
+# Leap 15.0
+sudo zypper addrepo https://download.opensuse.org/repositories/home:guoyunhe/openSUSE_Leap_15.0/home:guoyunhe.repo
+# Leap 15.1
+sudo zypper addrepo https://download.opensuse.org/repositories/home:guoyunhe/openSUSE_Leap_15.1/home:guoyunhe.repo
+# Leap 42.3
+sudo zypper addrepo https://download.opensuse.org/repositories/home:guoyunhe/openSUSE_Leap_42.3/home:guoyunhe.repo
+# SLE 15
+sudo zypper addrepo https://download.opensuse.org/repositories/home:guoyunhe/SLE_15/home:guoyunhe.repo
+
 sudo zypper refresh
 sudo zypper install opi
 ```