update to include windows instructions

README.md

@@ -10,17 +10,15 @@
 
 Retrolambda needs java8 to be installed on your system
 ```
-export ANDROID_HOME=/path/to/android/sdk
-
-git clone https://github.com/RocketChat/Rocket.Chat.Android.git
-cd Rocket.Chat.Android
-
-echo "sdk.dir="$ANDROID_HOME > local.properties
-
-./gradlew assembleDebug
+$ export ANDROID_HOME=/path/to/android/sdk
+$ git clone https://github.com/RocketChat/Rocket.Chat.Android.git
+$ cd Rocket.Chat.Android
+$ echo "sdk.dir="$ANDROID_HOME > local.properties
+$ ./gradlew assembleDebug
+(> gradlew assembleDebug on Windows)
 ```
 
-### How to sent APK to device
+### How to send APK to device
 
 The following steps are only needed if running via command line. They are not needed if you are building via Android Studio.
 
@@ -30,7 +28,7 @@ If a single device exists, install via `$ adb install /path/to/apk.apk`.
 
 Assuming you used Gradle like earlier, the file will be called `module_name-debug.apk` in `project_name/module_name/build/outputs/apk/`.
 
-Alternatively, you can simply run `./gradlew installDebug` to build, deploy, and debug all in a single command.
+Alternatively, you can simply run `$ ./gradlew installDebug` (`> gradlew installDebug` on Windows)to build, deploy, and debug all in a single command.
 
 ## Bug report & Feature request