[gimp] libgimp: some documentation fixes and improvements

[Michael Natterer <mitch src gnome org>]

commit 7cd99086ba2e3ed9e134b1bba4c8168ec67b8189
Author: Michael Natterer <mitch gimp org>
Date:   Fri Dec 27 19:56:21 2019 +0100

    libgimp: some documentation fixes and improvements

 libgimp/gimpplugin.h    | 1 +
 libgimp/gimpprocedure.h | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/libgimp/gimpplugin.h b/libgimp/gimpplugin.h
index 879fd17fcc..ef6cc5b848 100644
--- a/libgimp/gimpplugin.h
+++ b/libgimp/gimpplugin.h
@@ -129,6 +129,7 @@ struct _GimpPlugInClass
   void             (* quit)             (GimpPlugIn  *plug_in);
 
   /* Padding for future expansion */
+  /*< private >*/
   void (* _gimp_reserved1) (void);
   void (* _gimp_reserved2) (void);
   void (* _gimp_reserved3) (void);
diff --git a/libgimp/gimpprocedure.h b/libgimp/gimpprocedure.h
index 10baf420b2..72b26e25b5 100644
--- a/libgimp/gimpprocedure.h
+++ b/libgimp/gimpprocedure.h
@@ -75,10 +75,12 @@ struct _GimpProcedure
  * @uninstall: called to uninstall the procedure from the main GIMP
  *   application. This is an implementation detail and must never
  *   be called by any plug-in code.
- * @run: called to when the procedure is executed via gimp_procedure_run().
+ * @run: called when the procedure is executed via gimp_procedure_run().
  *   the default implementation simply calls the procedure's #GimpRunFunc,
  *   #GimpProcedure subclasses are free to modify the passed @args and
  *   call their own, subclass-specific run functions.
+ * @create_config: called when a #GimpConfig object is created using
+ *   gimp_procedure_create_config().
  *
  * Since: 3.0
  **/
@@ -97,6 +99,7 @@ struct _GimpProcedureClass
                                            gint                   n_args);
 
   /* Padding for future expansion */
+  /*< private >*/
   void (*_gimp_reserved1) (void);
   void (*_gimp_reserved2) (void);
   void (*_gimp_reserved3) (void);