path: add example for Match

Change-Id: I5ab475011e9200c5055809e658d14c04c0a07a8a
Reviewed-on: https://go-review.googlesource.com/51413Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/path/example_test.go

@@ -91,6 +91,16 @@ func ExampleJoin() {
 	// a
 }
 
+func ExampleMatch() {
+	fmt.Println(path.Match("abc", "abc"))
+	fmt.Println(path.Match("a*", "abc"))
+	fmt.Println(path.Match("a*/b", "a/c/b"))
+	// Output:
+	// true <nil>
+	// true <nil>
+	// false <nil>
+}
+
 func ExampleSplit() {
 	fmt.Println(path.Split("static/myfile.css"))
 	fmt.Println(path.Split("myfile.css"))