docs: add close channel docs and update 'README.md' (#81)

README.md

@@ -10,7 +10,9 @@
 
 ![cw-ica-controller](./docs/static/img/cw-ica-controller.svg)
 
-This is a CosmWasm smart contract that communicates with the golang `ica/host` module on the counterparty chain to create and manage **one** interchain account. This contract can also execute callbacks based on the result of the interchain account transaction. Because this is a CosmWasm implementation of the entire ICA controller, the chain that this contract is deployed on need **not** have the ICA module enabled. Moreover, the counterparty chain need not have CosmWasm support. This contract can be deployed on chains that support CosmWasm `v1.2+`.
+This is a CosmWasm smart contract that communicates with the golang `ica/host` module on the counterparty chain to create and manage **one** interchain account. This contract can also execute callbacks based on the result of the interchain account transaction. Because this is a CosmWasm implementation of the entire ICA controller, the chain that this contract is deployed on need **not** have the ICA module enabled. Moreover, the counterparty chain need not have CosmWasm support. This contract can be deployed on chains that support CosmWasm `v1.3+`.
+
+**A documentation website for this contract is [here](https://srdtrk.github.io/cw-ica-controller/).**
 
 This contract now supports both `proto3json` and protobuf encoding/decoding for ICA transactions. **The recommended encoding is protobuf.** If no encoding is specified, then the contract will default to protobuf encoding.
 

docs/docs/contract-api/02-execute-msg.mdx

@@ -25,6 +25,16 @@ passed to the `InstantiateMsg` or `CreateChannel` messages.
 If this parameter is set, then the contract will use the `channel_open_init_options` that are passed to this
 message and save them for future `CreateChannel` messages.
 
+## `CloseChannel`
+
+```rust reference
+https://github.com/srdtrk/cw-ica-controller/blob/9890793d3a19a9ec068e26627ec99ec48b3b9d92/src/types/msg.rs#L38-L39
+```
+
+This message is used to close the ICS-27 channel. It is only callable by the owner.
+The channel can then be reopened with parameters (e.g. channel ordering and version) that are different from the
+original channel open handshake.
+
 ## `SendCosmosMsgs`
 
 ```rust reference

docs/docs/contract-api/03-query-msg.mdx

@@ -31,7 +31,7 @@ https://github.com/srdtrk/cw-ica-controller/blob/v0.4.0/src/types/msg.rs#L106-L1
 This message is used to query the state of the contract. It returns
 
 ```rust reference
-https://github.com/srdtrk/cw-ica-controller/blob/v0.4.0/src/types/state.rs#L31-L45
+https://github.com/srdtrk/cw-ica-controller/blob/9890793d3a19a9ec068e26627ec99ec48b3b9d92/src/types/state.rs#L39-L50
 ```
 
 Lets look at the fields of the `ContractState`:
@@ -45,10 +45,6 @@ following information:
 https://github.com/srdtrk/cw-ica-controller/blob/v0.4.0/src/types/state.rs#L109-L115
 ```
 
-### `allow_channel_open_init`
-
-This field is used internally and should be ignored. It will be removed in a future version.
-
 ### `callback_address`
 
 This is the contract address that the `cw-ica-controller` contract will send callbacks to. If this field is empty,