Update markdown processor version

Author: linkdotnet

src/LinkDotNet.Blog.Web/LinkDotNet.Blog.Web.csproj

@@ -8,7 +8,7 @@
     <ItemGroup>
         <PackageReference Include="Blazored.Toast" Version="3.2.2" />
         <PackageReference Include="BuildBundlerMinifier" Version="3.2.449" />
-        <PackageReference Include="Markdig" Version="0.27.0" />
+        <PackageReference Include="Markdig" Version="0.28.0" />
         <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="6.0.2" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.2" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.2" />