add missing curly brackets in all translated pages

_i18n/es/resources/developer-guides/wallet-rpc.md

@@ -962,7 +962,7 @@ Outputs: *None*.
 Example:
 
 ```
-$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain" -H 'Content-Type: application/json'
+$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain"}' -H 'Content-Type: application/json'
 
 {
   "id": "0",

_i18n/fr/resources/developer-guides/wallet-rpc.md

@@ -962,7 +962,7 @@ Outputs: *None*.
 Example:
 
 ```
-$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain" -H 'Content-Type: application/json'
+$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain"}' -H 'Content-Type: application/json'
 
 {
   "id": "0",

_i18n/it/resources/developer-guides/wallet-rpc.md

@@ -962,7 +962,7 @@ Outputs: *None*.
 Example:
 
 ```
-$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain" -H 'Content-Type: application/json'
+$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain"}' -H 'Content-Type: application/json'
 
 {
   "id": "0",

_i18n/pl/resources/developer-guides/wallet-rpc.md

@@ -795,7 +795,7 @@ Wynik: *brak*.
 Przykład:
 
 ```
-$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain" -H 'Content-Type: application/json'
+$ curl -X POST http://127.0.0.1:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"rescan_blockchain"}' -H 'Content-Type: application/json'
 
 {
   "id": "0",