add nuget icon

Author: Folleach

GeometryDashAPI/GeometryDashAPI.csproj

@@ -13,6 +13,7 @@
     <LangVersion>latest</LangVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>enable</Nullable>
+    <PackageIcon>logo.png</PackageIcon>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
@@ -31,6 +32,11 @@
   </ItemGroup>
 
   <ItemGroup>
+    <None Include="..\Images\logo.png">
+      <Pack>True</Pack>
+      <PackagePath></PackagePath>
+      <Link>logo.png</Link>
+    </None>
     <None Include="..\LICENSE">
       <Pack>True</Pack>
       <PackagePath></PackagePath>