Enforce 80 char line limit in README.md

README.md

 # ExoPlayer #
 
-ExoPlayer is an application level media player for Android. It provides an alternative to Android’s
-MediaPlayer API for playing audio and video both locally and over the Internet. ExoPlayer supports
-features not currently supported by Android’s MediaPlayer API, including DASH and SmoothStreaming
-adaptive playbacks. Unlike the MediaPlayer API, ExoPlayer is easy to customize and extend, and can
-be updated through Play Store application updates.
+ExoPlayer is an application level media player for Android. It provides an
+alternative to Android’s MediaPlayer API for playing audio and video both
+locally and over the Internet. ExoPlayer supports features not currently
+supported by Android’s MediaPlayer API, including DASH and SmoothStreaming
+adaptive playbacks. Unlike the MediaPlayer API, ExoPlayer is easy to customize
+and extend, and can be updated through Play Store application updates.
 
 ## News ##
 
@@ -14,7 +15,8 @@ Read news, hints and tips on the [news][] page.
 
 ## Documentation ##
 
-* The [developer guide][] provides a wealth of information to help you get started.
+* The [developer guide][] provides a wealth of information to help you get
+  started.
 * The [class reference][] documents the ExoPlayer library classes.
 * The [release notes][] document the major changes in each release.
 
@@ -26,24 +28,24 @@ Read news, hints and tips on the [news][] page.
 
 #### Via jCenter ####
 
-The easiest way to get started using ExoPlayer is by including the following in your project's
-`build.gradle` file:
+The easiest way to get started using ExoPlayer is by including the following in
+your project's `build.gradle` file:
 
 ```
 gradle
 compile 'com.google.android.exoplayer:exoplayer:rX.X.X'
 ```
 
-where `rX.X.X` is the your preferred version. For the latest version, see the project's
-[Releases][]. For more details, see the project on [Bintray][].
+where `rX.X.X` is the your preferred version. For the latest version, see the
+project's [Releases][]. For more details, see the project on [Bintray][].
 
 [Releases]: https://github.com/google/ExoPlayer/releases
 [Bintray]: https://bintray.com/google/exoplayer/exoplayer/view
 
 #### As source ####
 
-ExoPlayer can also be built from source using Gradle. You can include it as a dependent project like
-so:
+ExoPlayer can also be built from source using Gradle. You can include it as a
+dependent project like so:
 
 ```
 gradle
@@ -80,15 +82,16 @@ and copy `library.jar` to the libs folder of your new project.
 
 #### Using Android Studio ####
 
-To develop ExoPlayer using Android Studio, simply open the ExoPlayer project in the root directory
-of the repository.
+To develop ExoPlayer using Android Studio, simply open the ExoPlayer project in
+the root directory of the repository.
 
 #### Using Eclipse ####
 
 To develop ExoPlayer using Eclipse:
 
   1. Install Eclipse and setup the [Android SDK][].
-  1. Open Eclipse and navigate to File->Import->General->Existing Projects into Workspace.
+  1. Open Eclipse and navigate to File->Import->General->Existing Projects into
+     Workspace.
   1. Select the root directory of the repository.
   1. Import the projects.