Prepare NuGet publication metadata for Generators and Abstractions packages (#48)

* Initial plan

* chore: add nuget package metadata for publication prep

Co-authored-by: dex3r <3155725+dex3r@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: dex3r <3155725+dex3r@users.noreply.github.com>

Author: Copilot

MattSourceGenHelpers.Abstractions/MattSourceGenHelpers.Abstractions.csproj

@@ -4,11 +4,23 @@
         <LangVersion>default</LangVersion>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
+        <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+        <Version>0.1.0</Version>
+        <Title>Matt Source Generation Helpers Abstractions</Title>
+        <Description>Attributes and fluent abstractions used by MattSourceGenHelpers source generators.</Description>
+        <Authors>Matt Krzaczek</Authors>
+        <PackageProjectUrl>https://github.com/dex3r/MattSourceGenHelpers</PackageProjectUrl>
+        <RepositoryUrl>https://github.com/dex3r/MattSourceGenHelpers</RepositoryUrl>
+        <PackageReadmeFile>README.md</PackageReadmeFile>
         <TargetFramework>net8.0</TargetFramework>
     </PropertyGroup>
 
     <ItemGroup>
       <PackageReference Include="JetBrains.Annotations" Version="2025.2.4" />
     </ItemGroup>
 
+    <ItemGroup>
+      <None Include="..\README.md" Pack="true" PackagePath="\" />
+    </ItemGroup>
+
 </Project>

MattSourceGenHelpers.Generators/MattSourceGenHelpers.Generators.csproj

@@ -9,9 +9,11 @@
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <Version>0.1.0</Version>
         <Title>Matt Source Generation Helpers</Title>
+        <Description>Roslyn source generators that turn normal methods into generated implementations.</Description>
         <Authors>Matt Krzaczek</Authors>
         <PackageProjectUrl>https://github.com/dex3r/MattSourceGenHelpers</PackageProjectUrl>
         <RepositoryUrl>https://github.com/dex3r/MattSourceGenHelpers</RepositoryUrl>
+        <PackageReadmeFile>README.md</PackageReadmeFile>
         <TargetFramework>net8.0</TargetFramework>
     </PropertyGroup>
 
@@ -22,4 +24,8 @@
     <ItemGroup>
       <ProjectReference Include="..\MattSourceGenHelpers.Abstractions\MattSourceGenHelpers.Abstractions.csproj" />
     </ItemGroup>
+
+    <ItemGroup>
+      <None Include="..\README.md" Pack="true" PackagePath="\" />
+    </ItemGroup>
 </Project>