Wallet: Update docs with shared-key API response changes

api-docs-slate/source/includes/_wallet.md

@@ -1240,7 +1240,8 @@ account = 'default';
 
 ```json
 {
-  "success": true
+  "success": true,
+  "addedKey": true
 }
 ```
 
@@ -1250,6 +1251,9 @@ Add a shared xpubkey to wallet. Must be a multisig wallet.
 Note that since it must be a multisig, the wallet on creation should be set with <code>m</code> and <code>n</code> where <code>n</code> is greater than 1 (since the first key is always that wallet's own xpubkey)
 </aside>
 
+Response will return `addedKey: true` true if key was added on this request. Returns
+`false` if key already added, but will still return `success: true` with status `200`.
+
 ### HTTP Request
 
 `PUT /wallet/:id/shared-key`
@@ -1295,12 +1299,16 @@ const account = 'default';
 
 ```json
 {
-  "success": true
+  "success": true,
+  "removedKey": true
 }
 ```
 
 Remove shared xpubkey from wallet if present.
 
+Response will return `removedKey: true` true if key was removed on this request. Returns
+`false` if key already removed, but will still return `success: true` with status `200`.
+
 ### HTTP Request
 
 `DEL /wallet/:id/shared-key`