Add docs

container/doc.go

@@ -0,0 +1,27 @@
+// Package container gives you a []byte slice on steroids, allowing for quick data appending, prepending and fetching as well as transparent error transportation.
+//
+// A Container is basically a [][]byte slice that just appends new []byte slices and only copies things around when necessary.
+//
+// Byte slices added to the Container are not changed or appended, to not corrupt any other data that may be before and after the given slice.
+// If interested, consider the following example to understand why this is important:
+//
+//		package main
+//
+//		import (
+//			"fmt"
+//		)
+//
+//		func main() {
+//			a := []byte{0, 1,2,3,4,5,6,7,8,9}
+//			fmt.Printf("a: %+v\n", a)
+//			fmt.Printf("\nmaking changes...\n(we are not changing a directly)\n\n")
+//			b := a[2:6]
+//			c := append(b, 10, 11)
+//			fmt.Printf("b: %+v\n", b)
+//			fmt.Printf("c: %+v\n", c)
+//			fmt.Printf("a: %+v\n", a)
+//		}
+//
+// run it here: https://play.golang.org/p/xu1BXT3QYeE
+//
+package container