doc: updated Exchange doc

Author: capedcrusader21

packages/marketplace/docs/Exchange.md

@@ -4,7 +4,7 @@
 
 The [Exchange contract](../contracts/Exchange.sol) is the entrypoint and main
 contract to the marketplace protocol. It safely offers a decentralized way to
-exchange tokens of any nature (ERC20, ERC1155, ERC721) using signed orders.It
+exchange tokens of any nature (ERC20, ERC1155, ERC721) using signed orders. It
 also supports exchanging bundles of assets, which can include multiple ERC1155,
 ERC721, and Quads.
 
@@ -29,8 +29,22 @@ seller is asking for (and more).
 ### Bundle Order
 
 In addition to single-asset orders, the protocol supports bundle orders, where
-multiple assets are grouped together as a single entity for exchange. Let's
-consider this use case:
+multiple assets are grouped together as a single entity for exchange. A bundle
+can contain:
+
+- Multiple ERC721 tokens
+- Multiple ERC1155 tokens
+- Multiple Quads
+- Any combination of the above
+
+Important restrictions for bundles:
+
+- Bundles cannot contain ERC20 tokens
+- Bundles can only be exchanged for ERC20 tokens (not for other NFTs or bundles)
+
+Each asset in the bundle can have its own individual price, and the total price
+of the bundle is the sum of all individual asset prices. Let's consider this use
+case:
 
 Order B
 
@@ -43,9 +57,14 @@ Alice wants to sell a bundle of assets:
 against 2000 MATIC (ERC20).
 ```
 
-The order represents this intent and includes the address of the seller, the
-address for the tokens(ERC721 and ERC1155), the token ids, the individual prices
-of the assets, the address of the ERC20 and the amount the seller is asking for.
+The order represents this intent and includes:
+
+- The address of the seller
+- The addresses for each token type (ERC721 and ERC1155)
+- The token IDs for each asset
+- The individual prices of the assets
+- The address of the ERC20 payment token
+- The total amount the seller is asking for
 
 ### Maker & Taker