update of README jar files section

README.rst

@@ -32,18 +32,19 @@ Changes
 See Changes log `here <https://github.com/histogrammar/histogrammar-python/blob/master/CHANGES.rst>`_.
 
 
-Spark 3.0
+Spark 3.X
 ---------
 
-With Spark 3.0, based on Scala 2.12, make sure to pick up the correct histogrammar jar file:
+With Spark 3.X, based on Scala 2.12 or 3.13, make sure to pick up the correct histogrammar jar files:
 
 .. code-block:: python
 
-  spark = SparkSession.builder.config("spark.jars.packages", "io.github.histogrammar:histogrammar_2.12:1.0.20,io.github.histogrammar:histogrammar-sparksql_2.12:1.0.20").getOrCreate()
+  spark = SparkSession.builder.config("spark.jars.packages", "io.github.histogrammar:histogrammar_2.12:1.0.30,io.github.histogrammar:histogrammar-sparksql_2.12:1.0.30").getOrCreate()
 
-For Spark 2.X compiled against scala 2.11, in the string above simply replace "2.12" with "2.11".
 
-February, 2021
+For Scala 2.13, in the string above simply replace "2.12" with "2.13".
+
+December, 2023
 
 
 Example notebooks