Update the readme with better info.

kevinweil · kevinweil · commit ed89ea0e6696 · 2010-02-02T00:53:35.000-08:00
diff --git a/README.md b/README.md
@@ -30,5 +30,5 @@ public static class MyMapper extends Mapper&lt;Path, NullWritable, ..., ...&gt;
 }
 </code></pre>
 
-The Path key is the input value.  As noted above, there is one InputSplit generated per element in the collection of Paths generated by calls to
-FileSetInputFormat.addPath and FileSetInputFormat.addAllPaths.  Note that duplicates are stripped.  That's it!
+The Path keys are the same paths passed in to FileSetInputFormat.addPath and FileSetInputFormat.addAllPaths.  Duplicates are stripped, and one
+InputSplit is generated per unique Path.  That's it!

Original file line number	Diff line number	Diff line change
`@@ -30,5 +30,5 @@ public static class MyMapper extends Mapper<Path, NullWritable, ..., ...>`
`30`	`30`	`}`
`31`	`31`	`</code></pre>`
`32`	`32`
`33`		`-The Path key is the input value. As noted above, there is one InputSplit generated per element in the collection of Paths generated by calls to`
`34`		`-FileSetInputFormat.addPath and FileSetInputFormat.addAllPaths. Note that duplicates are stripped. That's it!`
	`33`	`+The Path keys are the same paths passed in to FileSetInputFormat.addPath and FileSetInputFormat.addAllPaths. Duplicates are stripped, and one`
	`34`	`+InputSplit is generated per unique Path. That's it!`