Tweaked formatting on README

Author: nhr

README.adoc

@@ -37,13 +37,13 @@ Each directory of the repo represents a different collection of topics (you can
 
 In order to construct the documentation site from these sources, the build system looks at certain metdata files. The actual format of these configuration files is TBD.
 
-=== `/builder_top_cfg.yaml`
+=== builder_top_cfg.yaml
 
 The top-level configuration file tells the build system the order in which to display the "book-grouped" topics.
 
-=== `/bookN/builder_book_cfg.yaml`
+=== builder_book_cfg.yaml
 
-The "book" level configuration file tells the build system the order in which to display the topics with the "book" grouping.
+A "book" level configuration file exists in each book directory. It tells the build system the order in which to display the topics with the "book" grouping.
 
 == Contacts