improve example to match any workflow files in actionlint.yaml (#481)

Author: rhysd

config_test.go

@@ -165,6 +165,8 @@ paths:
     ignore: [vvv]
   .github/workflows/**/x.yaml:
     ignore: [www]
+  .github/workflows/**/*.{yml,yaml}:
+    ignore: [ttt]
 `
 
 	var cfg Config
@@ -197,6 +199,8 @@ paths:
 		{".github/workflows/a/b/x.yaml", "www", true},
 		{".github/workflows/a/b/c/x.yaml", "www", true},
 		{".github/workflows/a/b.yaml", "this is not ignored", false},
+		{".github/workflows/a.yml", "xxx", false},
+		{".github/workflows/a.yml", "ttt", true},
 	}
 
 	for _, tc := range tests {

docs/config.md

@@ -32,7 +32,7 @@ config-variables:
 paths:
   # Glob pattern relative to the repository root for matching files. The path separator is always '/'.
   # This example configures any YAML file under the '.github/workflows/' directory.
-  .github/workflows/**/*.yaml:
+  .github/workflows/**/*.{yml,yaml}:
     # List of regular expressions to filter errors by the error messages.
     ignore:
       # Ignore the specific error from shellcheck