docs: update docs for rule folder-match-with-fex

Author: dukeluo

README.md

@@ -77,7 +77,7 @@ Then configure the rules you want to use under the rules section.
 
 ## Supported Rules
 
-- [check-file/folder-match-with-fex](docs/rules/folder-match-with-fex.md): Enforce a consistent naming pattern for the folder of the specified file extension
+- [check-file/folder-match-with-fex](docs/rules/folder-match-with-fex.md): Enforce a consistent naming pattern for the folder of the specified file
 - [check-file/filename-naming-convention](docs/rules/filename-naming-convention.md): Enforce a consistent naming pattern for the filename of the specified file
 - [check-file/no-index](docs/rules/no-index.md): A file cannot be named "index"
 - [check-file/folder-naming-convention](docs/rules/folder-naming-convention.md): Enforce a consistent naming pattern for the name of the specified folder

lib/rules/folder-match-with-fex.js

@@ -1,5 +1,5 @@
 /**
- * @file The folder should match the naming pattern specified by the file extension
+ * @file The folder should match the naming pattern specified by its file
  * @author Huan Luo
  */
 'use strict';
@@ -25,7 +25,7 @@ module.exports = {
     type: 'layout',
     docs: {
       description:
-        'The folder should match the naming pattern specified by the file extension',
+        'The folder should match the naming pattern specified by its file',
       category: 'Layout & Formatting',
       recommended: false,
       url: getDocUrl('folder-match-with-fex'),

tests/lib/rules/folder-match-with-fex.posix.js

@@ -1,5 +1,5 @@
 /**
- * @file The folder should match the naming pattern specified by the file extension
+ * @file The folder should match the naming pattern specified by its file
  * @author Huan Luo
  */
 'use strict';

tests/lib/rules/folder-match-with-fex.windows.js

@@ -1,5 +1,5 @@
 /**
- * @file The folder should match the naming pattern specified by the file extension
+ * @file The folder should match the naming pattern specified by its file
  * @author Huan Luo
  */
 'use strict';