nit: "kotinx" -> "kotlinx"

[ToddSmall]

Hi,

I noticed that the path to the following file, and the package statement within the file, should have "kotinx" replaced by "kotlinx":

core/3.0/src/main/scala/org/jetbrains/kotinx/spark/extensions/KSparkExtensions.scala

You will also need to update import org.jetbrains.kotinx.spark.extensions.KSparkExtensions in:

kotlin-spark-api/3.0/src/main/kotlin/org/jetbrains/kotlinx/spark/api/ApiV1.kt

Thanks,

Todd