Add support for Twig template language (#39)

* add header comment configuration for Twig template language

* add CurlyBracketHashtag to header normalizing mechanism
diff --git a/assets/languages.yaml b/assets/languages.yaml
index 4b0c75c..0804a62 100644
--- a/assets/languages.yaml
+++ b/assets/languages.yaml
@@ -5783,6 +5783,7 @@
   codemirror_mode: twig
   codemirror_mime_type: text/x-twig
   language_id: 377
+  comment_style_id: CurlyBracketHashtag
 Type Language:
   type: data
   aliases:
diff --git a/assets/styles.yaml b/assets/styles.yaml
index 98fddc6..9d70bba 100644
--- a/assets/styles.yaml
+++ b/assets/styles.yaml
@@ -80,6 +80,11 @@
   middle: '%'
   end: '%'
 
+- id: CurlyBracketHashtag
+  start: '{#'
+  middle: ~
+  end: '#}'
+
 - id: CurlyBracketAsterisk
   start: '{*'
   middle: ~
diff --git a/pkg/license/norm.go b/pkg/license/norm.go
index 90ee00f..75fd1ab 100644
--- a/pkg/license/norm.go
+++ b/pkg/license/norm.go
@@ -67,6 +67,8 @@
 		regexp.MustCompile(`(?m)^\s*\.\.`),   // ..
 		regexp.MustCompile(`(?mi)^\s*@?REM`), // @REM
 		regexp.MustCompile(`(?mi)^\s*%+`),    // % e.g. matlab
+		regexp.MustCompile(`(?m)^\s*{#+`),    // {#
+		regexp.MustCompile(`(?m)^\s*#+}`),    // #}
 		regexp.MustCompile(`(?m)^\s*{\*+`),   // {*
 		regexp.MustCompile(`(?m)^\s*\*+}`),   // *}
 	}