docs/esp8266/intro: Rename to "Getting started" from "Introduction".

pfalcon · pfalcon · commit 919c54f750cf · 2016-08-07T17:28:23.000+03:00
People tend to skip introductions (everyone knows what esp8266 is, right?),
so try to do A/B testing with a title inviting to read it.
diff --git a/docs/esp8266/tutorial/intro.rst b/docs/esp8266/tutorial/intro.rst
@@ -1,5 +1,5 @@
-Introduction to MicroPython on the ESP8266
-==========================================
+Getting started with MicroPython on the ESP8266
+===============================================
 
 Using MicroPython is a great way to get the most of your ESP8266 board.  And
 vice versa, the ESP8266 chip is a great platform for using MicroPython.  This
