doxygen: add pages for help

help.c

@@ -21,7 +21,7 @@
  */
 
 /**
- * @page help Generate the help-line and help-page and GUI display them
+ * @page help_page Generate the help-line and help-page and GUI display them
  *
  * Generate the help-line and help-page and GUI display them
  */

help/help.c

@@ -22,6 +22,12 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/**
+ * @page help_help Help system
+ *
+ * Help system
+ */
+
 #include "config.h"
 #include <stddef.h>
 #include <errno.h>

help/help.h

@@ -1,6 +1,6 @@
 /**
  * @file
- * Help system
+ * Help Viewer
  *
  * @authors
  * Copyright (C) 2018-2019 Richard Russon <rich@flatcap.org>
@@ -22,6 +22,18 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/**
+ * @page help HELP: Help Viewer
+ *
+ * Help Viewer
+ *
+ * | File              | Description              |
+ * | :---------------- | :----------------------- |
+ * | help/help.c       | @subpage help_help       |
+ * | help/scan.c       | @subpage help_scan       |
+ * | help/vector.c     | @subpage help_vector     |
+ */
+
 #ifndef MUTT_HELP_HELP_H
 #define MUTT_HELP_HELP_H
 

help/scan.c

@@ -20,6 +20,12 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/**
+ * @page help_scan Scan a directory with nftw
+ *
+ * Scan a directory with nftw
+ */
+
 #include <ftw.h>
 #include <string.h>
 #include <stdio.h>

help/vector.c

@@ -20,6 +20,12 @@
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/**
+ * @page help_vector Expandable array
+ *
+ * Expandable array
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include "mutt/mutt.h"