Update installpackage_Spark.ipynb

Author: Rahul Ajmera

samples/features/sql-big-data-cluster/spark/config-install/installpackage_Spark.ipynb

@@ -57,7 +57,7 @@
                 "Maven packages can be installed onto your Spark cluster using notebook cell configuration at the start of your spark session. Before starting a spark session in Azure Data Studio, run the following code:\r\n",
                 "\r\n",
                 "```\r\n",
-                "%%configure -f` \\\r\n",
+                "%%configure -f \\\r\n",
                 "{\"conf\": {\"spark.jars.packages\": \"com.microsoft.azure:azure-eventhubs-spark_2.11:2.3.1\"}}\r\n",
                 "```\r\n",
                 ""