Merge pull request #183 from googlesamples/proppy-patch-7

README: fix typo

Author: ed7coyne

README.md

@@ -13,7 +13,7 @@ The Arduino library is [under heavy development](https://github.com/googlesample
 - [FirebaseDemo](https://github.com/googlesamples/firebase-arduino/tree/master/examples/FirebaseDemo_ESP8266) - shows the FirebaseArduino API methods.
 - [FirebaseRoom](https://github.com/googlesamples/firebase-arduino/tree/master/examples/FirebaseRoom_ESP8266) - shows how to push sensor data and trigger actuator from Firebase.
 - [FirebaseStream](https://github.com/googlesamples/firebase-arduino/tree/master/examples/FirebaseStream_ESP8266) - shows the FirebaseArduino streaming API.
-- [FirebaseNeoPixelo](https://github.com/googlesamples/firebase-arduino/tree/master/examples/FirebaseNeoPixel_ESP8266) - shows how to control an array of LEDs from a Firebase web app. 
+- [FirebaseNeoPixel](https://github.com/googlesamples/firebase-arduino/tree/master/examples/FirebaseNeoPixel_ESP8266) - shows how to control an array of LEDs from a Firebase web app. 
 
 ## Documentation