update doc

Author: bmarcott

sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/PruneShuffleAndSort.scala

@@ -23,8 +23,8 @@ import org.apache.spark.sql.catalyst.rules.Rule
 import org.apache.spark.sql.execution.{SortExec, SparkPlan}
 
 /**
- * Removes unnecessary shuffles and sorts after new ones are introduced by [[SparkPlan] SparkPlan]]
- * [[Rule Rules]], such as [[EnsureRequirements]].
+ * Removes unnecessary shuffles and sorts after new ones are introduced by [[Rule]]s for
+ * [[SparkPlan]]s, such as [[EnsureRequirements]].
  */
 case class PruneShuffleAndSort() extends Rule[SparkPlan] {