Updated docs and xfail Double and Float tests on Spark versions < 3.1.3

Signed-off-by: Navin Kumar <navink@nvidia.com>

docs/configs.md

@@ -161,11 +161,15 @@ Name | SQL Function(s) | Description | Default Value | Notes
 <a name="sql.expression.And"></a>spark.rapids.sql.expression.And|`and`|Logical AND|true|None|
 <a name="sql.expression.AnsiCast"></a>spark.rapids.sql.expression.AnsiCast| |Convert a column of one type of data into another type|true|None|
 <a name="sql.expression.ArrayContains"></a>spark.rapids.sql.expression.ArrayContains|`array_contains`|Returns a boolean if the array contains the passed in key|true|None|
+<a name="sql.expression.ArrayExcept"></a>spark.rapids.sql.expression.ArrayExcept|`array_except`|Returns an array of the elements in array1 but not in array2, without duplicates|true|None|
 <a name="sql.expression.ArrayExists"></a>spark.rapids.sql.expression.ArrayExists|`exists`|Return true if any element satisfies the predicate LambdaFunction|true|None|
+<a name="sql.expression.ArrayIntersect"></a>spark.rapids.sql.expression.ArrayIntersect|`array_intersect`|Returns an array of the elements in the intersection of array1 and array2, without duplicates|true|None|
 <a name="sql.expression.ArrayMax"></a>spark.rapids.sql.expression.ArrayMax|`array_max`|Returns the maximum value in the array|true|None|
 <a name="sql.expression.ArrayMin"></a>spark.rapids.sql.expression.ArrayMin|`array_min`|Returns the minimum value in the array|true|None|
 <a name="sql.expression.ArrayRepeat"></a>spark.rapids.sql.expression.ArrayRepeat|`array_repeat`|Returns the array containing the given input value (left) count (right) times|true|None|
 <a name="sql.expression.ArrayTransform"></a>spark.rapids.sql.expression.ArrayTransform|`transform`|Transform elements in an array using the transform function. This is similar to a `map` in functional programming|true|None|
+<a name="sql.expression.ArrayUnion"></a>spark.rapids.sql.expression.ArrayUnion|`array_union`|Returns an array of the elements in the union of array1 and array2, without duplicates.|true|None|
+<a name="sql.expression.ArraysOverlap"></a>spark.rapids.sql.expression.ArraysOverlap|`arrays_overlap`|Returns true if a1 contains at least a non-null element present also in a2. If the arrays have no common element and they are both non-empty and either of them contains a null element null is returned, false otherwise.|true|None|
 <a name="sql.expression.ArraysZip"></a>spark.rapids.sql.expression.ArraysZip|`arrays_zip`|Returns a merged array of structs in which the N-th struct contains all N-th values of input arrays.|true|None|
 <a name="sql.expression.Asin"></a>spark.rapids.sql.expression.Asin|`asin`|Inverse sine|true|None|
 <a name="sql.expression.Asinh"></a>spark.rapids.sql.expression.Asinh|`asinh`|Inverse hyperbolic sine|true|None|