[gtk/wip/ebassi/constraint-layout] docs: Fix typo in function name

[Emmanuele Bassi <ebassi src gnome org>]

commit d5f8e1bf29ef82db25bb077d4a90abf21aa87ac6
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue Jul 2 09:44:48 2019 +0100

    docs: Fix typo in function name

 docs/reference/gtk/gtk4-sections.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 41b59c5c65..ac9ea19fa9 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -7328,7 +7328,7 @@ gtk_constraint_layout_new
 <SUBSECTION Constraints>
 gtk_constraint_layout_add_constraint
 gtk_constraint_layout_remove_constraint
-gtk_constraint_layout_remove_all_constraint
+gtk_constraint_layout_remove_all_constraints
 
 <SUBSECTION Guides>
 gtk_constraint_layout_add_guide