Update direct URL spec links

Author: sbidoul

docs/html/reference/inspect-report.md

@@ -50,10 +50,11 @@ the following properties:
   ```
 
 - `direct_url`: Information about the direct URL that was used for installation, if any,
-  using the [direct
-  URL](https://packaging.python.org/en/latest/specifications/direct-url/) data
-  structure. In most case, this field corresponds to the `direct_url.json` metadata,
-  except for legacy editable installs, where it is emulated.
+  using the [direct URL data
+  structure](https://packaging.python.org/en/latest/specifications/direct-url-data-structure/).
+  In most case, this field corresponds to the
+  [direct_url.json](https://packaging.python.org/en/latest/specifications/direct-url)
+  metadata, except for legacy editable installs, where it is emulated.
 
 - `requested`: `true` if the `REQUESTED` metadata is present, `false` otherwise. This
   field is only present for modern `.dist-info` installations.

docs/html/reference/installation-report.md

@@ -58,9 +58,10 @@ package with the following properties:
   specifier.
 
 - `download_info`: Information about the artifact (to be) downloaded for installation,
-  using the [direct
-  URL](https://packaging.python.org/en/latest/specifications/direct-url/) data
-  structure. When `is_direct` is `true`, this field is the same as the `direct_url.json`
+  using the [direct URL data
+  structure](https://packaging.python.org/en/latest/specifications/direct-url-data-structure/).
+  When `is_direct` is `true`, this field is the same as the
+  [direct_url.json](https://packaging.python.org/en/latest/specifications/direct-url)
   metadata, otherwise it represents the URL of the artifact obtained from the index or
   `--find-links`.