Merge pull request #1607 from Kotlin/docs_version_update

update version in website docs

Author: AndreiKingsley

docs/StardustDocs/topics/setup/SetupKotlinNotebook.md

@@ -65,14 +65,14 @@ You can explicitly define the version you want:
 
 
 ```
-%use dataframe(1.0.0)
+%use dataframe(1.0.0-Beta4n)
 ```
 
 Or use the latest stable version of Kotlin DataFrame
 (specified in [Kotlin Jupyter descriptors](https://github.com/Kotlin/kotlin-jupyter-libraries)):
 
 <warning>
-For version `1.0.0-Beta3`, in notebooks use version `1.0.0-Beta3n` instead.
+For version `1.0.0-Beta4`, in notebooks use version `1.0.0-Beta4n` instead.
 This uses the patch of [#1435](https://github.com/Kotlin/dataframe/pull/1435) for issue 
 [#1116](https://github.com/Kotlin/dataframe/issues/1116), avoiding `DefinitelyNotNullable` errors.
 

docs/StardustDocs/v.list

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE vars SYSTEM "https://resources.jetbrains.com/writerside/1.0/vars.dtd">
 <vars>
-    <var name="dataFrameVersion" value="1.0.0-Beta3" type="string"/>
+    <var name="dataFrameVersion" value="1.0.0-Beta4" type="string"/>
     <var name="compilerPluginKotlinVersion" value="2.3.0-RC" type="string"/>
 </vars>