lean into examples

examples/slices/slices.go

@@ -0,0 +1,14 @@
+package main
+
+import "fmt"
+
+func main() {
+    slice1 := []int{1, 2, 3}
+    slice2 := append(slice1, 4, 5)
+    fmt.Println(slice1)
+    fmt.Println(slice2)
+    slice3 := make([]int, 2)
+    copy(slice3, slice1)
+    fmt.Println(slice1)
+    fmt.Println(slice3)
+}