Updated examples

 *  Renamed example x to example 3

examples/example_x/readme.txt → examples/example_3/readme.txt

-Example Project
+Example 3
+=========
 
 This example project gives an example of some passing, ignored, and failing tests.
 It's simple and meant for you to look over and get an idea for what all of this stuff does.
@@ -9,10 +10,10 @@ test with gcc or a couple versions of IAR.  You can tweak the yaml files to get
 running.
 
 Ruby is required if you're using the rake version (obviously).  This version shows off most of
-Unity's advanced features (automatically creating test runners, fancy summaries, etc.)  
+Unity's advanced features (automatically creating test runners, fancy summaries, etc.)
 
 The makefile version doesn't require anything outside of your normal build tools, but won't do the
-extras for you.  So that you can test right away, we've written the test runners for you and 
+extras for you.  So that you can test right away, we've written the test runners for you and
 put them in the test\no_ruby subdirectory.  If you make changes to the tests or source, you might
 need to update these (like when you add or remove tests).  Do that for a while and you'll learn
 why you really want to start using the Ruby tools.
\ No newline at end of file