Fix path of .nupkg for the release (#97)

* fix path of .nupkg for the release

* add PackageId for name of .nupkg

Author: fle-bach

ReactiveXComponent/ReactiveXComponent.csproj

@@ -10,6 +10,7 @@
     <PackageIconUrl>https://raw.githubusercontent.com/xcomponent/reactivexcomponent.net/master/logo.png</PackageIconUrl>
     <PackageProjectUrl>https://github.com/xcomponent/ReactiveXComponent.Net</PackageProjectUrl>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
+    <PackageId>ReactiveXComponent.Net</PackageId>
     <Version>2.0.0</Version>
   </PropertyGroup>