improve csproj

Author: doghappy

src/SocketIOClient/SocketIOClient.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>netstandard2;net472</TargetFrameworks>
+		<TargetFrameworks>netstandard2;net461</TargetFrameworks>
 		<AssemblyName>SocketIOClient</AssemblyName>
 		<RootNamespace>SocketIOClient</RootNamespace>
 		<Authors>HeroWong</Authors>
@@ -29,7 +29,7 @@
 		<PackageReference Include="System.Text.Json" Version="7.0.0" />
 	</ItemGroup>
 
-	<ItemGroup Condition=" '$(TargetFramework)' == 'net472' ">
+	<ItemGroup Condition="$(TargetFramework.StartsWith('net4'))">
 		<Reference Include="System.Net.Http" />
 	</ItemGroup>