Edits to flipper pods comments (#27485)

Summary:
grammar edits

## Changelog

[Internal] [Fixed] - Edits to flipper pods comments
Pull Request resolved: https://github.com/facebook/react-native/pull/27485

Differential Revision: D18962196

Pulled By: hramos

fbshipit-source-id: d8eb8b852130b9ceee8ab9b668f94d9d4d11a217

template/ios/Podfile

@@ -78,8 +78,8 @@ target 'HelloWorld' do
   use_native_modules!
 
   # For enabling Flipper.
-  # Note that if you use_frameworks!, flipper will no work.
-  # Disable these lines if you are doing use_frameworks!
+  # Note that if you have use_frameworks!, flipper will not work.
+  # Disable these lines if you are using use_frameworks!
   flipper_pods()
   post_install do |installer|
     flipper_post_install(installer)