Minor addons README improvement

addons/README.asciidoc

@@ -58,10 +58,15 @@ To use this addon, you must add it as a dependency in the *pom.xml* of your `for
 The addons addon provides some functionality on its own for development and extension purposes, but primarily integrates with and extends several other addons. 
 
 Handle simple or complex addon layouts::
- This addon supports development of two standard addon project layouts: *Simple* project layouts are a simple single-module project, consisting of project sources and dependencies. *Complex* project layouts are a multi-module project designed to take advantage of the modular system design, hiding implementation classes, while exposing API and SPI classes for use by consumers.
-+
+
+ This addon supports development of two standard addon project layouts: 
+
+- *Simple* project layouts are a simple single-module project, consisting of project sources and dependencies. 
+- *Complex* project layouts are a multi-module project designed to take advantage of the modular system design, hiding implementation classes, while exposing API and SPI classes for use by consumers.
+
+
 *Complex addon layout:*
-+
+
 [options="header"]
 |===
 |Module |Type |Description |Visibility to consumers