[gnote/meson] Include config.h

[Aurimas Černius <aurimasc src gnome org>]

commit f70dd8034affaaa841a3955154b46d9c5928fbfc
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Mon Mar 29 23:16:51 2021 +0300

    Include config.h

 src/addins/exporttohtml/exporttohtmlnoteaddin.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/addins/exporttohtml/exporttohtmlnoteaddin.cpp 
b/src/addins/exporttohtml/exporttohtmlnoteaddin.cpp
index 82e28e76..af4419da 100644
--- a/src/addins/exporttohtml/exporttohtmlnoteaddin.cpp
+++ b/src/addins/exporttohtml/exporttohtmlnoteaddin.cpp
@@ -1,7 +1,7 @@
 /*
  * gnote
  *
- * Copyright (C) 2010-2013,2016-2017,2019- 2020 Aurimas Cernius
+ * Copyright (C) 2010-2013,2016-2017,2019-2021 Aurimas Cernius
  * Copyright (C) 2009 Hubert Figuiere
  *
  * This program is free software: you can redistribute it and/or modify
@@ -25,6 +25,7 @@
 
 #include <glibmm/i18n.h>
 
+#include "config.h"
 #include "sharp/exception.hpp"
 #include "sharp/files.hpp"
 #include "sharp/streamwriter.hpp"