Update 1.0.0.md

Author: ralfhandl

versions/1.0.0.md

@@ -1,6 +1,6 @@
 # Overlay Specification
 
-## Abstract dummy change
+## Abstract
 
 The Overlay Specification defines a document format for information that augments an existing [[OpenAPI]] description yet remains separate from the OpenAPI description's source document(s).