Merge pull request #53 from sea-snake/patch-1

ICRC-7 language fixes

ICRCs/ICRC-7/ICRC-7.md

@@ -107,7 +107,7 @@ Analogous to [ICRC-1 metadata](https://github.com/dfinity/ICRC-1/tree/main/stand
 The set of elements contained in a specific ledger's metadata depends on the ledger implementation, the list below establishes the currently defined fields.
 
 The following metadata fields are defined by ICRC-7, starting with general collection-specific metadata fields:
-  * `icrc7:symbol` of type `text`: The token symbol. Token symbols are often represented similar to [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217)) currency codes. When present, should be the same as the result of the [`icrc7_symbol`](#icrc7_symbol) query call.
+  * `icrc7:symbol` of type `text`: The token symbol. Token symbols are often represented similar to [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217)) currency codes. Should be the same as the result of the [`icrc7_symbol`](#icrc7_symbol) query call.
   * `icrc7:name` of type `text`: The name of the token. Should be the same as the result of the [`icrc7_name`](#icrc7_name) query call.
   * `icrc7:description` of type `text` (optional): A textual description of the token. When present, should be the same as the result of the [`icrc7_description`](#icrc7_description) query call.
   * `icrc7:logo` of type `text` (optional): The URL of the token logo. It may be a [DataURL](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URLs) that contains the logo image itself. When present, should be the same as the result of the [`icrc7_logo`](#icrc7_logo) query call.
@@ -318,16 +318,15 @@ Batch transfers are *not atomic* by default, i.e., a user SHOULD not assume that
 
 ```candid "Type definitions" +=
 TransferArg = record {
-    from_subaccount: opt blob; // the subaccount to transfer the token from
+    from_subaccount: opt blob; // The subaccount to transfer the token from
     to : Account;
     token_id : nat;
-    // type: leave open for now
     memo : opt blob;
     created_at_time : opt nat64;
 };
 
 type TransferResult = variant {
-    Ok : nat; // Transaction indices for successful transfers
+    Ok : nat; // Transaction index for successful transfer
     Err : TransferError;
 };