[gtk: 1/2] docs: Fix spelling of GDK_VERSION_MIN_REQUIRED.

[Timm Bäder <baedert src gnome org>]

commit ef32df77bec0e3e0a3bb0eedc89133462f44b273
Author: Santosh Mahto <santosh mahto collabora com>
Date:   Thu Jun 4 12:07:22 2020 +0530

    docs: Fix spelling of GDK_VERSION_MIN_REQUIRED.

 docs/reference/gtk/compiling.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/compiling.md b/docs/reference/gtk/compiling.md
index f0351029fd..55e154bd17 100644
--- a/docs/reference/gtk/compiling.md
+++ b/docs/reference/gtk/compiling.md
@@ -37,7 +37,7 @@ this range will trigger compiler warnings.
 Here is how you would compile hello.c if you want to allow it
 to use symbols that were not deprecated in 4.2:
 ```
-$ cc `pkg-config --cflags gtk4` -DGDK_VERSION_MIN_REQIRED=GDK_VERSION_4_2 hello.c -o hello `pkg-config 
--libs gtk4`
+$ cc `pkg-config --cflags gtk4` -DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_4_2 hello.c -o hello `pkg-config 
--libs gtk4`
 ```
 
 And here is how you would compile hello.c if you don't want