dokka docs added/2

docs/bipack.md

@@ -8,7 +8,7 @@ This library contains a `Bipack` binary format serializer, see [net.sergeych.bip
 Bipack ais a common kotlinx serializer that works pretty much like any other `kotlinx.serialization` format. You just mark your class as `@Serializable` and it does the rest.
 
 - [BipackEncoder] to serializes anything to bipack format.
-- [BpackDecoder] deserializes from bipack back.
+- [BipackDecoder] deserializes from bipack back.
 
 There are also special annotation to fine tune the format: [Extendable], [Framed], [CrcProtected] for classes and [Unsigned] for integer data fields.