adds docs page for 'wallet/multisig/getAccountIdentity' (#777)

Author: hughy

content/documentation/rpc/wallet/multisig/get_account_identity.mdx

@@ -0,0 +1,24 @@
+---
+title: wallet/multisig/getAccountIdentity
+description: RPC Multisig | Iron Fish Documentation
+---
+
+Retrieves the identity for a multisig account.
+
+#### Request
+
+```ts
+{  
+  account?: string
+}
+```
+
+#### Response
+
+```ts
+{
+  identity: string
+}
+```
+
+###### [View on Github](https://github.com/iron-fish/ironfish/blob/master/ironfish/src/rpc/routes/wallet/multisig/getAccountIdentity.ts)

content/documentation/sidebar.ts

@@ -448,6 +448,10 @@ export const sidebar: SidebarDefinition = [
               {
                 label: "Multisig",
                 items: [
+                  {
+                    id: "rpc/wallet/multisig/get_account_identity",
+                    label: "getAccountIdentity",
+                  },
                   {
                     id: "rpc/wallet/multisig/get_account_identities",
                     label: "getAccountIdentities",