data sources section init

Author: AndreiKingsley

docs/StardustDocs/d.tree

@@ -201,4 +201,5 @@
     </toc-element>
     <toc-element topic="_shadow_resources.md" hidden="true"/>
     <toc-element topic="Support.md"/>
+    <toc-element topic="DataSources.md"/>
 </instance-profile>

docs/StardustDocs/topics/dataSources/CSV.md

@@ -0,0 +1,7 @@
+# Data Sources
+
+One of the key aspects of working with data is being able to read from and write to various data sources.  
+Kotlin DataFrame provides seamless support for a wide range of formats to integrate into your data workflows.  
+Below you'll find a list of supported sources along with instructions on how to read and write data using them.
+
+- [JSON]()