[grilo/wip/jfelder/doc-grl-related-keys-int64] doc: Add missing grl_related_keys_{get, set}_int64 functions

[Jean Felder <jfelder src gnome org>]

commit 3bfed595ef9348791518bf6f144ce12801ff9399
Author: Jean Felder <jfelder src gnome org>
Date:   Wed Nov 7 11:02:43 2018 +0100

    doc: Add missing grl_related_keys_{get,set}_int64 functions
    
    Those functions were introduced by commit 6b26ee20.

 doc/grilo/grilo-sections.txt | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/doc/grilo/grilo-sections.txt b/doc/grilo/grilo-sections.txt
index 89abc55..05c454c 100644
--- a/doc/grilo/grilo-sections.txt
+++ b/doc/grilo/grilo-sections.txt
@@ -251,6 +251,7 @@ grl_related_keys_get_boolean
 grl_related_keys_get_boxed
 grl_related_keys_get_float
 grl_related_keys_get_int
+grl_related_keys_get_int64
 grl_related_keys_get_keys
 grl_related_keys_get_string
 grl_related_keys_has_key
@@ -260,6 +261,7 @@ grl_related_keys_set_boolean
 grl_related_keys_set_boxed
 grl_related_keys_set_float
 grl_related_keys_set_int
+grl_related_keys_set_int64
 grl_related_keys_set_string
 grl_related_keys_remove
 <SUBSECTION Standard>