Move "definitions" to "specification" section

Signed-off-by: Michał Górny <[email protected]>

Author: mgorny

peps/pep-0817.rst

@@ -49,14 +49,6 @@ The goal is for a familiar ``[uv] pip install <package>`` to provide
 the best user experience.
 
 
-Definitions
-===========
-
-The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
-"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
-document are to be interpreted as described in :rfc:`2119`.
-
-
 Motivation
 ==========
 
@@ -1067,6 +1059,14 @@ variant-aware tools while being ignored by programs that do not
 implement this specification.
 
 
+Definitions
+-----------
+
+The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
+"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
+document are to be interpreted as described in :rfc:`2119`.
+
+
 Wheel variant glossary
 ----------------------