post: add post about building the blog (#10)

* post: stub out initial post with outline

* fix: add title attribute to lead in feed and add disc to list styles in posts

* fix: apply style to artcile

* post: work on rough draft

* post: work on rough draft

* post: work on rought draft

* post: work on rought draft

* post: more work on rough draft

* post: finish post

* chore: cleanup usings

* chore: run dotnet format

* docs: testing README

* docs: update README.md

test/Blog.Tests/EndToEnd/RssTests.cs

@@ -24,7 +24,7 @@ public class RssTests : BlogTest
 
     using var xmlReader = XmlReader.Create(streamReader, settings);
     var feed = SyndicationFeed.Load(xmlReader);
-    
+
     feed.Title.Text.Should().Be("journal");
     feed.Description.Text.Should().Be("A blog by Stevan Freeborn");
     feed.Items.Should().HaveCount(2);