Update waku.md

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Dean Eigenmann 2019-12-17 16:09:57 +01:00 committed by GitHub
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@ -74,7 +74,7 @@ Waku is a RLPx subprotocol called `waku` with version `0`. The version number co
Using [Augmented Backus-Naur form (ABNF)](https://tools.ietf.org/html/rfc5234) we have the following format:
```
```abnf
; Packet codes 0 - 127 are reserved for Waku protocol
packet-code = 1*3DIGIT
@ -286,7 +286,6 @@ Packet code `0x03` will be necessary for scalability of the network. In case of
Packet codes `0x7E` and `0x7F` may be used to implement Waku Mail Server and Client. Without P2P messages it would be impossible to deliver the old messages, since they will be recognized as expired, and the peer will be disconnected for violating the Whisper protocol. They might be useful for other purposes when it is not possible to spend time on PoW, e.g. if a stock exchange will want to provide live feed about the latest trades.
## Additional capabilities
Waku supports multiple capabilities. These include light node, rate limiting and bridging of traffic. Here we list these capabilities, how they are identified, what properties they have and what invariants they must maintain.