diff --git a/doc/Write-A-Recipe-Even-If-You-Dont-Know-C.md b/doc/Write-A-Recipe-Even-If-You-Dont-Know-C.md
index be48caa..75274c2 100644
--- a/doc/Write-A-Recipe-Even-If-You-Dont-Know-C.md
+++ b/doc/Write-A-Recipe-Even-If-You-Dont-Know-C.md
@@ -1,11 +1,12 @@
 <!-- -----------------------------------------------------------
  ! SPDX-License-Identifier: GFDL-1.3-or-later
  ! -------------------------------------------------------------
- ! Doc Authors     : Aoran Zeng <ccmywish@qq.com>
- ! Contributors    :  Nul None  <nul@none.org>
- !                 |
- ! Created On      : <2024-08-19>
- ! Last Modified   : <2024-08-22>
+ ! Doc Type      : Markdown
+ ! Doc Authors   : Aoran Zeng <ccmywish@qq.com>
+ ! Contributors  :  Nul None  <nul@none.org>
+ !               |
+ ! Created On    : <2024-08-19>
+ ! Last Modified : <2024-08-22>
  ! ---------------------------------------------------------- -->
 
 # Write A Recipe Even If You Don't Know C
diff --git a/doc/chsrc.1 b/doc/chsrc.1
index e3ce00a..52a1bb5 100644
--- a/doc/chsrc.1
+++ b/doc/chsrc.1
@@ -1,7 +1,7 @@
 .\" --------------------------------------------------------------
 .\" SPDX-License-Identifier: GFDL-1.3-or-later
 .\" --------------------------------------------------------------
-.\" chsrc man page
+.\" Doc Type      : Man Page
 .\" Doc Authors   : Aoran Zeng <ccmywish@qq.com>
 .\" Contributors  :  Nul None  <nul@none.org>
 .\"               |
diff --git a/doc/chsrc.texi b/doc/chsrc.texi
index 01a7a25..9f011b4 100644
--- a/doc/chsrc.texi
+++ b/doc/chsrc.texi
@@ -1,3 +1,14 @@
+@c --------------------------------------------------------------
+@c SPDX-License-Identifier: GFDL-1.3-or-later
+@c --------------------------------------------------------------
+@c Doc Type      : Texinfo
+@c Doc Authors   : Aoran Zeng <ccmywish@qq.com>
+@c Contributors  :  Nul None  <nul@none.org>
+@c               |
+@c Created On    : <2024-08-22>
+@c Last Modified : <2024-08-22>
+@c --------------------------------------------------------------
+
 \input texinfo
 @setfilename chsrc.info
 @settitle chsrc