Add tokenfactory module readme

x/tokenfactory/README.md

@@ -0,0 +1,60 @@
+# Token Factory
+
+The tokenfactory module allows any account to create a new token with
+the name `factory/{creator address}/{subdenom}` in a permissionless fashion.
+
+## Messages
+
+### CreateDenom
+
+Creates a denom of `factory/{creator address}/{subdenom}` given the denom creator
+address and the subdenom. Subdenoms can contain `[a-zA-Z0-9./]`.
+
+```protobuf
+message MsgCreateDenom {
+  string sender = 1 [ (gogoproto.moretags) = "yaml:\"sender\"" ];
+  string subdenom = 2 [ (gogoproto.moretags) = "yaml:\"subdenom\"" ];
+}
+```
+
+### Mint
+
+Minting of a specific denom is only allowed for the current admin.
+Note, the current admin is defaulted to the creator of the denom.
+
+```protobuf
+message MsgMint {
+  string sender = 1 [ (gogoproto.moretags) = "yaml:\"sender\"" ];
+  cosmos.base.v1beta1.Coin amount = 2 [
+    (gogoproto.moretags) = "yaml:\"amount\"",
+    (gogoproto.nullable) = false
+  ];
+}
+```
+
+### Burn
+
+Burning of a specific denom is only allowed for the current admin.
+Note, the current admin is defaulted to the creator of the denom.
+
+```protobuf
+message MsgBurn {
+  string sender = 1 [ (gogoproto.moretags) = "yaml:\"sender\"" ];
+  cosmos.base.v1beta1.Coin amount = 2 [
+    (gogoproto.moretags) = "yaml:\"amount\"",
+    (gogoproto.nullable) = false
+  ];
+}
+```
+
+### ChangeAdmin
+
+Change the admin of a denom. Note, this is only allowed to be called by the current admin of the denom.
+
+```protobuf
+message MsgChangeAdmin {
+  string sender = 1 [ (gogoproto.moretags) = "yaml:\"sender\"" ];
+  string denom = 2 [ (gogoproto.moretags) = "yaml:\"denom\"" ];
+  string newAdmin = 3 [ (gogoproto.moretags) = "yaml:\"new_admin\"" ];
+}
+```