[SPARK-4421] Wrong link in spark-standalone.html

Modified the link of building Spark. (backport version of #3279.)

Author: Masayoshi TSUZUKI <tsudukim@oss.nttdata.co.jp>

Closes #3280 from tsudukim/feature/SPARK-4421-2 and squashes the following commits:

3b4d38d [Masayoshi TSUZUKI] [SPARK-4421] Wrong link in spark-standalone.html

docs/spark-standalone.md

@@ -10,7 +10,7 @@ In addition to running on the Mesos or YARN cluster managers, Spark also provide
 
 # Installing Spark Standalone to a Cluster
 
-To install Spark Standalone mode, you simply place a compiled version of Spark on each node on the cluster. You can obtain pre-built versions of Spark with each release or [build it yourself](index.html#building).
+To install Spark Standalone mode, you simply place a compiled version of Spark on each node on the cluster. You can obtain pre-built versions of Spark with each release or [build it yourself](building-with-maven.html).
 
 # Starting a Cluster Manually