diff --git a/README.md b/README.md
index 71e47ad0d..3f4a6e83b 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ This project brings support for ESP8266 chip to the Arduino environment. ESP8266
 ### Downloads ###
 
 | OS | Build status | Latest release | Alpha Version |
-| --- | ------------ | -------------- |
+| --- | ------------ | -------------- | --------------- |
 | Linux | [![Linux build status](http://img.shields.io/travis/igrr/Arduino.svg)](https://travis-ci.org/igrr/Arduino) | [arduino-1.6.1-linux64.tar.xz](../../releases/download/1.6.1-esp8266-1/arduino-1.6.1-linux64.tar.xz) | |
 | Windows | [![Windows build status](http://img.shields.io/appveyor/ci/igrr/Arduino.svg)](https://ci.appveyor.com/project/igrr/Arduino) | [arduino-1.6.1-p1-windows.zip](https://github.com/igrr/Arduino/releases/download/1.6.1-esp8266-1/arduino-1.6.1-p1-windows.zip) |  [appveyor Build](https://ci.appveyor.com/project/igrr/Arduino/build/artifacts) |
 | OS X |  | [arduino-1.6.1-macosx-java-latest-signed.zip](../../releases/download/1.6.1-esp8266-1/arduino-1.6.1-macosx-java-latest-signed.zip) | |
@@ -44,6 +44,10 @@ Pin interrupts are supported through ```attachInterrupt```, ```detachInterrupt``
 Interrupts may be attached to any GPIO pin, except GPIO16. Standard Arduino interrupt
 types are supported: ```CHANGE```, ```RISING```, ```FALLING```.
 
+#### Pin Functions ####
+
+![Pin Functions](https://raw.githubusercontent.com/Links2004/Arduino/esp8266/docs/pin_functions.png)
+
 #### Timing and delays ####
 ```millis``` and ```micros``` return the number of milliseconds and microseconds elapsed after reset, respectively.