Add direct download links to example subprojects

Author: koperagen

examples/android-example/README.md

@@ -10,3 +10,6 @@ It also includes the [Kotlin DataFrame Compiler Plugin](https://kotlin.github.io
 
 We recommend using an up-to-date Android Studio for the best experience.
 For proper functionality in Android Studio requires version Otter | 2025.2.2 or higher.
+
+[Download Android Example](https://github.com/Kotlin/dataframe/raw/example-projects-archives/android-example.zip)
+

examples/kotlin-dataframe-plugin-example/README.md

@@ -8,3 +8,5 @@ An IntelliJ IDEA project demonstrating the use of the
 
 We recommend using an up-to-date IntelliJ IDEA for the best experience.
 For proper functionality in IntelliJ IDEA requires version 2025.2 or higher.
+
+[Download Kotlin DataFrame Compiler Plugin Example](https://github.com/Kotlin/dataframe/raw/example-projects-archives/kotlin-dataframe-plugin-example.zip)