change language to json in code blocks
@@ -64,7 +64,7 @@ API to create new virtual device:
returns
-``` javascript
+``` json
{
"device_id": "ABCDEFG"
}
@@ -75,7 +75,7 @@ Send public key using `/keys/upload` as a normal device, but with a special
`POST /keys/upload`
-``` javascript
+``` json
{
"device_keys": {
"user_id": "@alice:example.com",
