Added lot more example code. (0.39.8).

examples/io/read_write_file.fun

@@ -0,0 +1,25 @@
+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2026 Johannes Findeisen
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ * Added: 2026-03-25
+ */
+
+#include <strings.fun>
+
+path = "./tmp/example.txt"
+print("Writing to: " + path)
+write_file(path, "Hello from Fun!\n")
+txt = read_file(path)
+print("Read back: " + str_trim(txt))
+
+/* Expected output:
+Writing to: ./tmp/example.txt
+Read back: Hello from Fun!
+*/