diff --git a/pep-0610.rst b/pep-0610.rst
index 292396d18..ea2cf8edf 100644
--- a/pep-0610.rst
+++ b/pep-0610.rst
@@ -184,6 +184,9 @@ Specification
 This PEP specifies a ``direct_url.json`` file in the ``.dist-info`` directory
 of an installed distribution, to record the Direct URL Origin of the distribution.
 
+The canonical source for the name and semantics of this metadata file is
+the `Recording the Direct URL Origin of installed distributions`_ document.
+
 This file MUST be created by installers when installing a distribution
 from a requirement specifying a direct URL reference (including a VCS URL).
 
@@ -251,12 +254,12 @@ present as a dictionary with the following key:
 
 When ``url`` refers to a local directory, it MUST have the ``file`` sheme
 and be compliant with `RFC 8089`_. In particular, the path component must
-be absolute. Symbolic links SHOULD be preserved when make relative
+be absolute. Symbolic links SHOULD be preserved when making relative
 paths absolute.
 
 .. note::
 
-  When the requested URL points to a local directory that happens to contain a
+  When the requested URL has the file:// scheme and points to a local directory that happens to contain a
   VCS checkout, installers MUST NOT attempt to infer any VCS information and
   therefore MUST NOT output any VCS related information (such as ``vcs_info``)
   in ``direct_url.json``.
@@ -532,6 +535,7 @@ References
 .. _`environment variables in the user:password part of URLs`: https://pip.pypa.io/en/stable/reference/pip_install/#id10
 .. _`RFC 8259`: https://tools.ietf.org/html/rfc8259
 .. _`RFC 8089`: https://tools.ietf.org/html/rfc8089
+.. _`Recording the Direct URL Origin of installed distributions`: https://packaging.python.org/specifications/direct-url
 
 Acknowledgements
 ================