PEP 612: Fix typos

pep-0612.rst

@@ -228,7 +228,7 @@ inheriting from ``Generic[P]`` makes a class generic on
    def f(x: X[int, ...]) -> str: ...                    # Accepted
    def f(x: X[int, int]) -> str: ...                    # Rejected
 
-By the rules defined above, spelling an concrete instance of a class generic
+By the rules defined above, spelling a concrete instance of a class generic
 with respect to only a single ``ParamSpec`` would require unsightly double
 brackets.  For aesthetic purposes we allow these to be omitted.
 
@@ -447,7 +447,7 @@ To extend this to include ``Concatenate``, we declare the following properties:
 * A function declared as
   ``def inner(a: A, b: B, *args: P.args, **kwargs: P.kwargs) -> R``
   has type ``Callable[Concatenate[A, B, P], R]``. Placing keyword-only
-  parameters beterrn the ``*args`` and ``**kwargs`` is forbidden.
+  parameters between the ``*args`` and ``**kwargs`` is forbidden.
 
 .. code-block::
 
@@ -462,7 +462,7 @@ To extend this to include ``Concatenate``, we declare the following properties:
      return foo                                                   # Accepted
 
 
-   def remove(x: Callable[Concatenate[int, P], int]) -> Callable[P, None]:
+   def remove(f: Callable[Concatenate[int, P], int]) -> Callable[P, None]:
 
      def foo(*args: P.args, **kwargs: P.kwargs) -> None:
        f(1, *args, **kwargs) # Accepted
@@ -566,7 +566,7 @@ so:
 .. code-block::
 
    R = typing.TypeVar(“R”)
-   Tpositionals = ....
+   Tpositionals = ...
    Tkeywords = ...
    class BetterCallable(typing.Protocol[Tpositionals, Tkeywords, R]):
      def __call__(*args: Tpositionals, **kwargs: Tkeywords) -> R: ...