[gnome-subtitles] Adding reference

[Pedro Castro <pcastro src gnome org>]

commit 739898b1b5412ecdb956fb40e83fa16c65f10d0e
Author: Pedro Castro <pedro gnomesubtitles org>
Date:   Mon Jun 20 20:56:09 2022 +0100

    Adding reference

 gnome-subtitles.csproj | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/gnome-subtitles.csproj b/gnome-subtitles.csproj
index 52994c7..941750b 100644
--- a/gnome-subtitles.csproj
+++ b/gnome-subtitles.csproj
@@ -53,6 +53,9 @@
     <Reference Include="pango-sharp">
       <HintPath>build\subprojects\gtk-sharp\Source\pango\pango-sharp.dll</HintPath>
     </Reference>
+    <Reference Include="atk-sharp">
+      <HintPath>build\subprojects\gtk-sharp\Source\atk\atk-sharp.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="src\Glade\MainWindow.ui">