Improve readability of entries in History document

Author: ashmaroli

History.markdown

@@ -1,24 +1,24 @@
 ## HEAD
 
-### Development Fixes
+### Minor Enhancements
 
-  * Add Ruby 3.0 to CI (#337)
-  * Lock RuboCop to v1.18.x (#348)
-  * Add workflow to release gem via GH Action (#355)
+  * Add support for `page.description` in front matter to become entry `<summary>` (#297)
 
 ### Bug Fixes
 
   * Fold private methods into the `:render` method as local variables (#327)
   * Check `post.categories` instead of `post.category` (#357)
-  * Switched xml_escape for &lt;![CDATA[]]&gt; for post content (#332)
+  * Switched xml_escape for `<![CDATA[]]>` for post content (#332)
 
-### Minor Enhancements
+### Development Fixes
 
-  * Add support for page.description in front matter to become entry `&lt;summary&gt;` (#297)
+  * Add Ruby 3.0 to CI (#337)
+  * Lock RuboCop to v1.18.x (#348)
+  * Add workflow to release gem via GH Action (#355)
 
 ### Documentation
 
-  * Use .atom extension in docs examples since we write an Atom feed (#359)
+  * Use `.atom` extension in documented examples since we write an Atom feed (#359)
 
 ## 0.15.1 / 2020-10-04