Relax readme check slightly

packages/google_maps_flutter/google_maps_flutter_ios/example/README.md

@@ -1,6 +1,6 @@
 # Platform Implementation Test Apps
 
-These are test app for manual testing and automated integration testing
+These are test apps for manual testing and automated integration testing
 of this platform implementation. They are not intended to demonstrate actual
 use of this package, since the intent is that plugin clients use the
 app-facing package.

script/tool/lib/src/readme_check_command.dart

@@ -337,8 +337,11 @@ ${indentation * 2}Please use standard capitalizations: ${sortedListString(expect
   /// Returns true if the README contains the repository-standard explanation of
   /// the purpose of a federated plugin implementation's example.
   bool _containsImplementationExampleExplanation(List<String> readmeLines) {
-    return readmeLines.contains('# Platform Implementation Test App') &&
-        readmeLines
-            .any((String line) => line.contains('This is a test app for'));
+    return (readmeLines.contains('# Platform Implementation Test App') &&
+            readmeLines.any(
+                (String line) => line.contains('This is a test app for'))) ||
+        (readmeLines.contains('# Platform Implementation Test Apps') &&
+            readmeLines.any(
+                (String line) => line.contains('These are test apps for')));
   }
 }