PEP 728: Fix formatting and code highlighting issues (#3659)

Signed-off-by: Zixuan James Li <p359101898@gmail.com>

peps/pep-0728.rst

@@ -12,8 +12,6 @@ Python-Version: 3.13
 Post-History: `09-Feb-2024 <https://discuss.python.org/t/pep-728-typeddict-with-typed-extra-items/45443>`__,
 
 
-.. highlight:: rst
-
 Abstract
 ========
 
@@ -286,17 +284,17 @@ added in a subclass, all of the following conditions should apply:
 
 - If ``__extra__`` is read-only
 
-    - The item can be either required or non-required
+  - The item can be either required or non-required
 
-    - The item's value type is consistent with ``T``
+  - The item's value type is consistent with ``T``
 
 - If ``__extra__`` is not read-only
 
-    - The item is non-required
+  - The item is non-required
 
-    - The item's value type is consistent with ``T``
+  - The item's value type is consistent with ``T``
 
-    - ``T`` is consistent with the item's value type
+  - ``T`` is consistent with the item's value type
 
 - If ``__extra__`` is not redeclared, the subclass inherits it as-is.
 
@@ -337,19 +335,19 @@ infinite set of items that all satisfy the following conditions:
 
 - If ``__extra__`` is read-only
 
-    - The key's value type is consistent with ``T``
+  - The key's value type is consistent with ``T``
 
-    - The key is not in ``S``.
+  - The key is not in ``S``.
 
 - If ``__extra__`` is not read-only
 
-    - The key is non-required
+  - The key is non-required
 
-    - The key's value type is consistent with ``T``
+  - The key's value type is consistent with ``T``
 
-    - ``T`` is consistent with the key's value type
+  - ``T`` is consistent with the key's value type
 
-    - The key is not in ``S``.
+  - The key is not in ``S``.
 
 For type checking purposes, let ``__extra__`` be a non-required pseudo-item to
 be included whenever "for each ... item/key" is stated in
@@ -362,25 +360,25 @@ and we modify it as follows:
 
     * For each item in ``B``, ``A`` has the corresponding key, unless the item
       in ``B`` is read-only, not required, and of top value type
-      (``ReadOnly[NotRequired[object]]``). [Edit: Otherwise, if the
+      (``ReadOnly[NotRequired[object]]``). **[Edit: Otherwise, if the
       corresponding key with the same name cannot be found in ``A``, "__extra__"
-      is considered the corresponding key.]
+      is considered the corresponding key.]**
 
-    * For each item in ``B``, if ``A`` has the corresponding key [Edit: or
-      "__extra__"], the corresponding value type in ``A`` is consistent with the
+    * For each item in ``B``, if ``A`` has the corresponding key **[Edit: or
+      "__extra__"]**, the corresponding value type in ``A`` is consistent with the
       value type in ``B``.
 
     * For each non-read-only item in ``B``, its value type is consistent with
-      the corresponding value type in ``A``. [Edit: if the corresponding key
+      the corresponding value type in ``A``. **[Edit: if the corresponding key
       with the same name cannot be found in ``A``, "__extra__" is considered the
-      corresponding key.]
+      corresponding key.]**
 
     * For each required key in ``B``, the corresponding key is required in ``A``.
       For each non-required key in ``B``, if the item is not read-only in ``B``,
       the corresponding key is not required in ``A``.
-      [Edit: if the corresponding key with the same name cannot be found in
+      **[Edit: if the corresponding key with the same name cannot be found in
       ``A``, "__extra__" is considered to be non-required as the corresponding
-      key.]
+      key.]**
 
 The following examples illustrate these checks in action.
 
@@ -412,7 +410,7 @@ corresponding key. ``"year"`` being required violates the rule "For each
 required key in ``B``, the corresponding key is required in ``A``".
 
 When ``__extra__`` is defined to be read-only in a TypedDict type, it is possible 
-for an item to have a narrower type than ``__extra__``'s value type.
+for an item to have a narrower type than ``__extra__``'s value type::
 
     class Movie(TypedDict):
         name: str
@@ -450,7 +448,7 @@ Interaction with Mapping[KT, VT]
 A TypedDict type can be consistent with ``Mapping[KT, VT]`` types other than
 ``Mapping[str, object]`` as long as the union of value types on the TypedDict
 type is consistent with ``VT``. It is an extension of this rule from the typing
-spec::
+spec:
 
     * A TypedDict with all ``int`` values is not consistent with
       ``Mapping[str, int]``, since there may be additional non-``int``
@@ -509,7 +507,7 @@ For example::
     regular_dict: dict[str, int] = not_required_num  # OK
     f(not_required_num)  # OK
 
-In this case, methods that are previously unavailable on a TypedDict are allowed.
+In this case, methods that are previously unavailable on a TypedDict are allowed::
 
     not_required_num.clear()  # OK
 
@@ -631,7 +629,7 @@ Acknowledgments
 
 Thanks to Jelle Zijlstra for sponsoring this PEP and providing review feedback,
 Eric Traut who `proposed the original design
-<https://mail.python.org/archives/list/typing-sig@python.org/message/3Z72OQWVTOVS6UYUUCCII2UZN56PV5II/>`
+<https://mail.python.org/archives/list/typing-sig@python.org/message/3Z72OQWVTOVS6UYUUCCII2UZN56PV5II/>`__
 this PEP iterates on, and Alice Purcell for offering their perspective as the
 author of :pep:`705`.