update README for airdrop-token-vesting

contracts/airdrop-token-vesting/README.md

@@ -4,27 +4,46 @@ This contract implements vesting accounts for the CW20 and native tokens.
 
 ### Master Operations
 
+#### By admin and members
+
 ```rust
-  RegisterVestingAccount {
-      master_address: Option<String>, // if given, the vesting account can be unregistered
-      address: String,
-      vesting_schedule: VestingSchedule,
+  RewardUsers {
+    rewards: Vec<RewardUserRequest>,
+    master_address: Option<String>, // if given, the vesting account can be unregistered
+    vesting_schedule: VestingSchedule,
   },
 ```
-* RegisterVestingAccount   - register vesting account
-  * When creating vesting account, the one can specify the `master_address` to enable deregister feature.
+
+This creates a set of vesting accounts for the given users. The `master_address` is used to enable the deregister feature.
+If no `master_address` is given, the deregister feature is disabled.
+
+#### By admin only
 
 ```rust
-    DeregisterVestingAccount {
-        address: String,
-        denom: Denom,
-        vested_token_recipient: Option<String>,
-        left_vesting_token_recipient: Option<String>,
-    },
+  Withdraw {
+    amount: Uint128,
+    recipient: String,
+  },
 ```
+
+This allows to get part or all of the unallocated amount from the contract and sends it to the `recipient`. Unallocated is equal to the
+amount sent on instantiation minus the already rewarded to users.
+
+#### By master_address only
+
+```rust
+  DeregisterVestingAccount {
+    address: String,
+    denom: Denom,
+    vested_token_recipient: Option<String>,
+    left_vesting_token_recipient: Option<String>,
+  },
+```
+
 * DeregisterVestingAccount  - deregister vesting account
   * This interface only executable from the `master_address` of a vesting account.
-  * It will compute `claimable_amount` and `left_vesting_amount`. Each amount respectively sent to (`vested_token_recipient` or `vesting_account`) and (`left_vesting_token_recipient` or `master_address`).
+  * It will compute `claimable_amount` and `left_vesting_amount`. Each amount respectively sent to (`vested_token_recipient` or `vesting_account`) 
+    and (`left_vesting_token_recipient` or `master_address`).
 
 ```rust
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
@@ -41,8 +60,6 @@ pub enum Cw20HookMsg {
 
 ### Vesting Account Operations
 
-* Claim - send newly vested token to the (`recipient` or `vesting_account`). The `claim_amount` is computed as (`vested_amount` - `claimed_amount`) and `claimed_amount` is updated to `vested_amount`.
-
 ```rust
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
 #[serde(rename_all = "snake_case")]
@@ -57,11 +74,15 @@ pub enum ExecuteMsg {
 }
 ```
 
+* Sends newly vested token to the (`recipient` or `vesting_account`). The `claim_amount` is computed 
+  as (`vested_amount` - `claimed_amount`) and `claimed_amount` is updated to `vested_amount`.
+
+  If everything is claimed, the vesting account is removed from the contract.
+
 ### Deployed Contract Info
 
 TODO for mainnet/testnet
 
-
 | Field         | Value  |
 | ------------- | ------ |
 | code_id       | ...  |