PEP 838: Prefix appendix reference label

Author: konsti-openai

peps/pep-0838.rst

@@ -43,9 +43,9 @@ environment created with Python 3.14.4 final:
   (`uv source <https://github.com/astral-sh/uv/blob/7bbc01af54e8fd1d3c61d05b65f233574f7466da/crates/uv-virtualenv/src/virtualenv.rs#L531>`__).
   Example: ``version_info = 3.14.4``.
 
-This information is used by a variety of tools, see :ref:`appendix`. Some of
-them want to present the full Python version to the user for identification,
-while others only need the major and minor version of Python.
+This information is used by a variety of tools, see :ref:`pep838-appendix`.
+Some of them want to present the full Python version to the user for
+identification, while others only need the major and minor version of Python.
 
 One problem is the different definitions of ``version`` and
 ``version_info``, and the lack of guarantees for downstream tools. There is
@@ -131,7 +131,7 @@ Reference Implementation
 Reference implementations will be provided for uv, virtualenv, and CPython.
 
 
-.. _appendix:
+.. _pep838-appendix:
 
 Appendix: Existing Tool Behavior
 ================================