[SPARK-4953][Doc] Fix the description of building Spark with YARN

At the section "Specifying the Hadoop Version" In building-spark.md, there is description about building with YARN with Hadoop 0.23.
Spark 1.3.0 will not support Hadoop 0.23 so we should fix the description.
This has a typo in "CDEH" and are also not runnable. I don't see much value in elaborating this example 3 more times.

(As a related aside, I would like to see less, not more, vendor stuff in Spark anyway. Adding just this text unduly favors Cloudera a tiny bit; the alternative is to write a bunch of other vendor combos here, which is going to turn into at least a maintenance headache. I already disagree with maintaining vendor versioning info in the project POM.)