PEP 708: Grammar Fixes and Clarification (#3165)

PEP 708: Address feedback

pep-0708.rst

@@ -167,7 +167,7 @@ repository or repositories by adding the URLs of the project and repositories
 that it is extending.
 
 This is exposed in JSON as the key ``meta.tracks`` and in HTML as a meta element
-named ``pypi:tracks``.
+named ``pypi:tracks`` on the project specific URLs, (``$root/$project/``).
 
 
 There are a few key properties that **MUST** be preserved when using this
@@ -181,16 +181,16 @@ metadata:
     like hosted repository services where one entity operates the software but
     another owns/manages the entire namespace of that repository.
 
-- All URLs **MUST** represent the same "project" as the project at in the
-  extending repository.
+- All URLs **MUST** represent the same "project" as the project in the extending
+  repository.
 
-  - This does not mean that they need to serve the same files. It is valid for it
-    to include binaries built on different platforms, copies with local patches
-    being applied, etc. This is purposefully left vague as it's ultimately up to
-    the expectations that the users have of the repository and its operators
-    what exactly constitutes the "same" project.
+  - This does not mean that they need to serve the same files. It is valid for
+    them to include binaries built on different platforms, copies with local
+    patches being applied, etc. This is purposefully left vague as it's
+    ultimately up to the expectations that the users have of the repository and
+    its operators what exactly constitutes the "same" project.
 
-- It **MUST** point to the repositories that "owns" the namespaces, not another
+- It **MUST** point to the repositories that "own" the namespaces, not another
   repository that is also tracking that namespace.
 
 - It **MUST** point to a project with the exact same name (after normalization).