diff --git a/references.adoc b/references.adoc
index f08aa05..6e2588b 100644
--- a/references.adoc
+++ b/references.adoc
@@ -1,10 +1,12 @@
 References
 ====
-.This Repository
+This Repository
+=====
 *  link:README.adoc[] 
 *  link:attributes/attributeClasses.adoc[Attribute Classes that can be used to categorize individual attributes] 
 
-.External Links
+External Links
+=====
 * https://spacetelescope.github.io/understanding-json-schema/UnderstandingJSONSchema.pdf[Understanding JSON Schema]; Good intro but somewhat dated: Refers to Draft 4, current is Draft 7
 * Phil Sturgeon’s https://philsturgeon.uk/api/2018/04/13/openapi-and-json-schema-divergence-solved/[two-part article] on 
 the convergence between http://json-schema.org/[JSON Schema] and https://www.openapis.org/[OAI 3]