diff --git a/README.md b/README.md
index 7b13d8c..f6dfc51 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,17 @@
 hoc2js
 ======
 
-Very simple utility for converting from Typesafe's HOCON to JSON
+A command-line tool to convert
+[HOCON](https://github.com/typesafehub/config/blob/master/HOCON.md) to JSON.
+HOCON is JSON-like but is a config file format for supporting human usage, developed by
+[Typesafe](http://typesafe.com/).
 
 ## License
 The license is Apache 2.0.
 
+## Requirement
+- Java 6 or later
+
 ## Installation
 Get an executable jar from [release page](https://github.com/okapies/hoc2js/releases).
 
@@ -29,7 +35,7 @@ $ java -jar hoc2js-1.1.jar test1.conf test2.conf
 The input HOCON may contain [substitutions](https://github.com/typesafehub/config/blob/master/HOCON.md#substitutions):
 
 ```
-$ java -prop.test="hello" -jar hoc2js-1.1.jar
+$ java -Dprop.test="hello" -jar hoc2js-1.1.jar
 test = ${prop.test}
 path = ${PATH}
 ^D
diff --git a/pom.xml b/pom.xml
index fb2f831..55ad4cc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.github.okapies</groupId>
   <artifactId>hoc2js</artifactId>
-  <version>1.0</version>
+  <version>1.1</version>
   <packaging>jar</packaging>
 
   <name>hoc2js</name>