Fix formatting in Readme.md

README.md

@@ -12,8 +12,10 @@ Arrow
 ![arrow](https://cloud.githubusercontent.com/assets/1624385/13253864/9852185c-da3e-11e5-93ff-e7d21e130130.jpg)
 
 <br>
+
 Main Features
 -----------------
+
 - **```Optional<T>```:** An immutable object that may contain a non-null reference to another object. Each instance of this type either contains a non-null reference, or contains nothing (in which case we say that the reference is "absent"); it is never said to "contain null". <a href="https://github.com/google/guava/wiki/UsingAndAvoidingNullExplained#optional" target="_blank">Refer to Guava ```Optional<T>``` documentation</a> or <a href="http://fernandocejas.com/2016/02/20/how-to-use-optional-on-android-and-java/" target="_blank">How to use ```Optional<T>``` on Java and Android.</a>
 
 - **```Strings```:** Static utility methods pertaining to String or CharSequence instances. <a href="https://github.com/google/guava/wiki/StringsExplained" target="_blank">Refer to Guava ```Strings``` documentation.</a>
@@ -41,8 +43,10 @@ Main Features
 
 
 <br>
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 Using Arrow
 -----------------
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 To enable Arrow, add your dependency in your ```build.gradle``` file:
 
 ```java
@@ -56,6 +60,7 @@ dependencies {
 ```
 
 <br>
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 License
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