[BAEL-19882] - Move articles out of core-kotlin part1

core-kotlin-modules/core-kotlin-io/README.md

@@ -0,0 +1,9 @@
+## Core Kotlin I/O
+
+This module contains articles about core Kotlin I/O.
+
+### Relevant articles:
+- [InputStream to String in Kotlin](https://www.baeldung.com/kotlin-inputstream-to-string)
+- [Console I/O in Kotlin](https://www.baeldung.com/kotlin-console-io)
+- [Reading from a File in Kotlin](https://www.baeldung.com/kotlin-read-file)
+- [Writing to a File in Kotlin](https://www.baeldung.com/kotlin-write-file)