Update the JSON provided in the modification of the package.json file step (facebook#4580)

Co-authored-by: Zach Dean <[email protected]>

Author: Zach-Dean-Attractions-io

docs/the-new-architecture/pure-cxx-modules.md

@@ -388,12 +388,13 @@ Modify the `package.json` as it follows:
      "jsSrcsDir": "specs",
      "android": {
        "javaPackageName": "com.sampleapp.specs"
-     }
      // highlight-add-start
-     "ios":
+     },
+     "ios": {
         "modulesProvider": {
           "NativeSampleModule":  "NativeSampleModuleProvider"
         }
+     }
      // highlight-add-end
    },
 

website/versioned_docs/version-0.79/the-new-architecture/pure-cxx-modules.md

@@ -388,12 +388,13 @@ Modify the `package.json` as it follows:
      "jsSrcsDir": "specs",
      "android": {
        "javaPackageName": "com.sampleapp.specs"
-     }
      // highlight-add-start
-     "ios":
+     },
+     "ios": {
         "modulesProvider": {
           "NativeSampleModule":  "NativeSampleModuleProvider"
         }
+     }
      // highlight-add-end
    },