Fix extrawhitespaces in README.md

spark/README.md

@@ -18,21 +18,20 @@ limitations under the License.
 
 # Apache HBase™ Spark Connector
 
-## Spark, Scala and other configurable options
+## Spark, Scala and Configurable Options
 
-To generate an artifact for a different [Spark version](https://mvnrepository.com/artifact/org.apache.spark/spark-core) and/or [Scala version](https://www.scala-lang.org/download/all.html), 
-[Hadoop version](https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-core), or [HBase version](https://mvnrepository.com/artifact/org.apache.hbase/hbase) pass command-line options as follows (changing version numbers appropriately):
+To generate an artifact for a different [Spark version](https://mvnrepository.com/artifact/org.apache.spark/spark-core) and/or [Scala version](https://www.scala-lang.org/download/all.html),
+[Hadoop version](https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-core), or [HBase version](https://mvnrepository.com/artifact/org.apache.hbase/hbase), pass command-line options as follows (changing version numbers appropriately):
 
 ```
 $ mvn -Dspark.version=3.1.2 -Dscala.version=2.12.10 -Dhadoop-three.version=3.2.0 -Dscala.binary.version=2.12 -Dhbase.version=2.4.8 clean install
 ```
 
 Note: to build the connector with Spark 2.x, compile it with `-Dscala.binary.version=2.11` and use the profile `-Dhadoop.profile=2.0`
 
-## Configuration and installation
+## Configuration and Installation
 **Client-side** (Spark) configuration:
-- The HBase configuration file `hbase-site.xml` should be made available to Spark, it 
-can be copied to `$SPARK_CONF_DIR` (default is $SPARK_HOME/conf`)
+- The HBase configuration file `hbase-site.xml` should be made available to Spark, it can be copied to `$SPARK_CONF_DIR` (default is $SPARK_HOME/conf`)
 
 **Server-side** (HBase region servers) configuration:
 - The following jars needs to be in the CLASSPATH of the HBase region servers: