Updated links

Author: satendrakumar

README.md

@@ -1,17 +1,17 @@
 # learning-spark
 
-##### Run dataset operation 
+##### [Run dataset operations](https://github.com/techmonad/learning-spark/blob/master/src/main/scala/com/techmonad/learn/DataSetOps.scala#L7-L93) 
 ```shell script
  sbt "runMain com.techmonad.learn.DataSetOps"
 ```
 
-##### Run dataframe operation 
+##### [Run dataframe operations](https://github.com/techmonad/learning-spark/blob/master/src/main/scala/com/techmonad/learn/DataFrameOps.scala#L6-L59) 
 ```shell script
  sbt "runMain com.techmonad.learn.DataFrameOps"
 ```
 
 
-##### Run RDD operation 
+##### [Run RDD operations](https://github.com/techmonad/learning-spark/blob/master/src/main/scala/com/techmonad/learn/RDDOps.scala#L5-L71) 
 ```shell script
  sbt "runMain com.techmonad.learn.RDDOps"
-```
+```