Update bip-0048.mediawiki

- Replace BIP number with ?
- Reduce title to less then 44 characters
- Add MIT Licence and copyright section
- Add specification section
- Add backwards compatibility section

Author: Fonta1n3

bip-0048.mediawiki

@@ -1,13 +1,14 @@
 <pre>
-  BIP: Number not assigned
+  BIP: ?
   Layer: Applications
-  Title: Multi-Account/Multi-Script Hierarchy for Deterministic Multi Signature Wallets
+  Title: Multi-Script Hierarchy for Multi-Sig Wallets
   Author: Peter Denton <[email protected]>
   Comments-Summary: No comments
-  Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0048
+  Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-?
   Status: Proposed
   Type: Standards Track
   Created: 2020-12-16
+  License: MIT License
 </pre>
 
 ==Abstract==
@@ -19,6 +20,9 @@ BIP-0044 (BIP44 from now on).
 
 This BIP is a particular application of BIP43.
 
+==Copyright==
+This BIP falls under the MIT License.
+
 ==Motivation==
 
 The motivation of this BIP is to define the existing industry wide practice of utilizing  m/48'
@@ -32,12 +36,22 @@ millions of addresses per chain.
 
 This paper was inspired from BIP44.
 
-==Key sorting==
+==Backwards compatibility==
+
+Currently a number of wallets already utilize this derivation scheme for HD multi-sig accounts.
+This BIP is intended to maintain the *existing* real world use of the `48'` derivation.
+No breaking changes are made so as to avoid "loss of funds" to existing users.
+Wallet's which currently support the `48'` derivation will not need to make any changes
+to comply with this BIP.
+
+==Specification==
+
+===Key sorting===
 
 Any wallet that supports BIP48 inherently supports deterministic key sorting as per BIP67 so that all possible
 multi-signature addresses/scripts are derived from deterministically sorted public keys.
 
-==Path levels==
+===Path levels===
 
 We define the following 6 levels in BIP32 path: