Remove section on file names for Overlay documents

Author: ralfhandl

versions/1.0.0.md

@@ -42,10 +42,6 @@ In order to preserve the ability to round-trip between YAML and JSON formats, [[
 - Tags MUST be limited to those allowed by the [JSON Schema ruleset](https://yaml.org/spec/1.2/spec.html#id2803231).
 - Keys used in YAML maps MUST be limited to a scalar string, as defined by the [YAML Failsafe schema ruleset](https://yaml.org/spec/1.2/spec.html#id2802346).
 
-### Document Structure
-
-It is RECOMMENDED that an Overlay document be named: `overlay.json` or `overlay.yaml`.
-
 ### Relative References in URLs
 
 Unless specified otherwise, all properties that are URLs MAY be relative references as defined by [RFC3986](https://tools.ietf.org/html/rfc3986#section-4.2).