Glossary: Add Lightning Protocol Suite

glossary.asciidoc

@@ -265,6 +265,11 @@ Lightning Network, Lightning Network Protocol, Lightning Protocol::
    Other components of the Lightning Network are the gossip protocol, the transport layer, and payment requests.
    The source code is available at https://github.com/lightningnetwork.
 
+Lightning Network Protocol Suite::
+   The Lightning Protocol Suite consists of 5 Layers which are responsible for various parts of the protocol.
+   From bottom (the first layer) to the top (the fifth layer) these layers are called: Network Communication Layer, Messaging Layer, Peer 2 Peer Layer, Routing Layer, Payment Layer.
+   Various BOLTs define tasks on one or several layers. 
+
 Lightning Network Node, Lightning Node::
     A participant on the Lightning Network.
     A Lightning user will run Lightning node software in order to interact with other Lightning nodes.