chore: added multisend on docs

source/includes/_bank.md

@@ -340,6 +340,60 @@ func main() {
 	fmt.Println("gas fee:", gasFee, "INJ")
 }
 ```
+
+```ts
+import { MsgMultiSend, MsgBroadcasterWithPk } from '@injectivelabs/sdk-ts'
+import { BigNumberInBase, BigNumberInWei } from '@injectivelabs/utils'
+import { Network } from '@injectivelabs/networks'
+
+const privateKey = '0x...'
+const injectiveAddress = 'inj1...'
+const denom = 'inj'
+const decimals = 18
+const records = [/** add records here */] as {
+    address: string;
+    amount: string; /* in a human readable number */
+}[];
+const totalToSend = records.reduce((acc, record) => {
+  return acc.plus(new BigNumberInBase(record.amount).toWei(decimals));
+}, new BigNumberInWei(0));
+
+const msg = MsgMultiSend.fromJSON({
+  inputs: [
+    {
+      address: injectiveAddress,
+      coins: [
+        {
+          denom,
+          amount: totalToSend.toFixed(),
+        },
+      ],
+    },
+  ],
+  outputs: records.map((record) => {
+    return {
+      address: record.address,
+      coins: [
+        {
+          amount: new BigNumberInBase(record.amount)
+            .toWei(decimals)
+            .toFixed(),
+          denom,
+        },
+      ],
+    };
+  }),
+});
+
+const txHash = await new MsgBroadcasterWithPk({
+  privateKey,
+  network: Network.Testnet
+}).broadcast({
+  msgs: msg
+})
+
+console.log(txHash)
+```
 <!-- MARKDOWN-AUTO-DOCS:END -->
 
 |Parameter|Type|Description|Required|