Created Flow Format (markdown)

Flow-Format.md

@@ -0,0 +1,22 @@
+    node-id ::= [0-9a-fA-F.]+
+
+    wire-entry ::= node-id 
+                 | "[" node-id ( "," node-id )* "]"
+
+    core-properties 
+             ::= "id" ":" node-id 
+               | "type" ":" string 
+               | "wires" ":" "[" wire-entry ( "," wire-entry )* "]" 
+               | "x" ":" number 
+               | "y" ":" number 
+               | "z" ":" number
+
+    type-properties ::= string ":" value
+
+    node ::= "{" core-properties ( "," core-properties )* ( "," type-properties )* "}"
+
+    flow ::= "[" node ( "," node )* "]"
+    
+`string`, `value`, `number` are as defined by [RFC7159: The Javascript Object Notation (JSON) Data Interchange Format](http://rfc7159.net/rfc7159).
+
+_todo:_ create diagrams http://bottlecaps.de/rr/ui