diff --git a/README.md b/README.md
index 605b25e..9d330af 100644
--- a/README.md
+++ b/README.md
@@ -1,27 +1,27 @@
-# kotlin-expect 
+# kotlin-expect
+
 [![Build Status](https://travis-ci.org/odd-poet/kotlin-expect.svg?branch=master)](https://travis-ci.org/odd-poet/kotlin-expect)[![codecov](https://codecov.io/gh/odd-poet/kotlin-expect/branch/master/graph/badge.svg)](https://codecov.io/gh/odd-poet/kotlin-expect)
 
 `kotlin-expect` is a assertion library for kotlin test. it's inspried by [Rspec Expectation].
 
-
-## Setup 
+## Setup
 
 ```gradle
 dependencies {
-    testCompile("net.oddpoet:kotlin-expect:1.3.1")
+    testCompile("net.oddpoet:kotlin-expect:1.3.2")
 }
 ```
 
-## Basic Usage 
+## Basic Usage
 
 ### `expect(s).to`
 
-You can write an assertion for a subject in the form `expect(subject).to`.  
+You can write an assertion for a subject in the form `expect(subject).to`.
 
 ```kotlin
 val list = listOf(1, 2, 3)
 expect(list).to.haveSizeOf(3)
-expect(list).to.satisfy { size == 3}
+expect(list).to.satisfy { size == 3 }
 expect(list).to.not.contain(5)
 expect(list).to.containAll { it < 10 }
 expect(list).to.not.beInstanceOf(Set::class)
@@ -49,6 +49,7 @@ expect(aList) {
     it.should.containAny { it.lenngth < 2 }
 }
 ```
+
 ### `expect { }.throws()`
 
 An assertion for an exception can be written in the form `expect { ... }.throws()`.
@@ -67,7 +68,7 @@ expect {
 ```
 
 ## Write own your assertion
- 
+
 `Kotlin-expect` has built-in assertions for java base types(`String`, `Collection`, `Map`, `Number` and so on).
 You can define new assertions for your class.
 An assertion for a class is defined as an extension of the `Expect` class.
@@ -77,39 +78,43 @@ An assertion for a class is defined as an extension of the `Expect` class.
 ```kotlin
 // for your classes
 abstract class Person(
-        val name: String,
-        val birthdate: LocalDate)
+    val name: String,
+    val birthdate: LocalDate
+)
 
 class Employee(
-        name: String, birthdate: LocalDate,
-        val empNo: String?,
-        val dept: String?) : Person(name, birthdate)
+    name: String, birthdate: LocalDate,
+    val empNo: String?,
+    val dept: String?
+) : Person(name, birthdate)
 ```
 
 ```kotlin
 // you can write your own assertion
 fun <T : Person> Expect<T>.beUnderage() =
-        satisfyThat("be underage") {
-            it.birthdate.plusYears(19) > LocalDate.now()
-        }
+    satisfyThat("be underage") {
+        it.birthdate.plusYears(19) > LocalDate.now()
+    }
 
 fun Expect<Employee>.beValid() =
-        satisfyThat("be valid") {
-            it.empNo != null && it.dept != null 
-        }
+    satisfyThat("be valid") {
+        it.empNo != null && it.dept != null
+    }
 
 fun Expect<Employee>.beAssignedTo(dept: String) =
-        satisfyThat("be assigned to $dept") {
-            it.dept == dept 
-        }
+    satisfyThat("be assigned to $dept") {
+        it.dept == dept
+    }
 ```
+
 ```kotlin
 // then you can use your assertion.
 val emp = Employee(
-        "yunsang.choi",
-        LocalDate.of(1976, 4, 2),
-        "X00000",
-        "DevTeam")
+    "yunsang.choi",
+    LocalDate.of(1976, 4, 2),
+    "X00000",
+    "DevTeam"
+)
 expect(emp) {
     it.should.beValid()
     it.should.not.beUnderage()