include milestone differentation

bsip-0040.md

@@ -37,6 +37,8 @@ With this BSIP any user can create keys with specific purpose (everything else i
 The above list of named keys is nothing that is known to the backend as the backend should have an abstract implementation.
  The UI could provide a button "Create Trading Key" that properly configures the respective custom active permission entry.
 
+This BSIP will be split into two parts that will be voted on serparately (see Milestones section). All of the above keys are possible with Milestone 1. Milestone 2 give finer control of how to combine restrictions and will also allow statefull restrictions (e.g. allow market orders up to some amount for every month).
+
 # Rational
 
 Custom active permission is a list of `custom active authorities`. A `custom active authority` contains an `operation_id`, an `authority` (just like with active permission) and `restrictions` than can be used to restrict arguments and is only valid a certain time period (`valid_from` and `valid_to`). When handling incoming signed transactions, the backend checks for each operation if there is a `custom active authority` for any of its required accounts. Check for every required account of the transaction if all its belonging operations have at least one positively matched `custom active authority` (match means its `authority` is granted through present signatures, same `operation_id`, now is within `valid_to` and `valid_from` and none of the `restrictions` is violated), and if so grant the active authority of the corresponding account. 
@@ -182,7 +184,7 @@ custom active authority = {
     restrictions: cut_out
 }
 
-cut_out =[  
+cut_out = [  
     {
         function: logical,
         argument: OR,
@@ -244,7 +246,9 @@ That has the consquence now that a transfer transaction sending funds away from
 - it sends less than 10000 of asset X to account C
 - it sends less than or equal to 20000 of asset Y to account C
 
-Note: This is just an illustration of a possible serialization, not a specification of the serialized format.
+Note: 
+- This is just an illustration of a possible serialization, not a specification of the serialized format.
+- This is not included in the first Milestone
 
 ### Outline of handling incoming transactions