docs(README): mention foundational role for official OpenAPI ABNF

README.md

@@ -8,12 +8,13 @@
 [![Tidelift](https://tidelift.com/badges/package/npm/openapi-path-templating)](https://tidelift.com/subscription/pkg/npm-openapi-path-templating?utm_source=npm-openapi-path-templating&utm_medium=referral&utm_campaign=readme)
 
 [OpenAPI Path Templating](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.1.md#path-templating) refers to the usage of template expressions, delimited by curly braces (`{}`), to mark a section of a URL path as replaceable using path parameters.
-
 Each template expression in the path MUST correspond to a path parameter that is included in the [Path Item](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.1.md#path-item-object) itself and/or in each of the Path Item's [Operations](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.1.md#operation-object).
 An exception is if the path item is empty, for example due to ACL constraints, matching path parameters are not required.
 
-`openapi-path-templating` is a **parser**, **validator** and **resolver** for OpenAPI Path Templating. It supports
-Path Templating defined in following OpenAPI specification versions:
+`openapi-path-templating` is a **parser**, **validator**, and **resolver** for OpenAPI Path Templating,
+which played a [foundational role](https://github.com/OAI/OpenAPI-Specification/pull/4244) in defining the official ANBF grammar for OpenAPI Path Templating.
+
+It supports Path Templating defined in following OpenAPI specification versions:
 
 - [OpenAPI 2.0](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/2.0.md#pathTemplating)
 - [OpenAPI 3.0.0](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.0.md#pathTemplating)