Apply suggestions from code review

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>

Author: LamentXU123

Doc/library/functools.rst

@@ -199,15 +199,15 @@ The :mod:`functools` module defines the following functions:
    and *typed*.  This is for information purposes only.  Mutating the values
    has no effect.
 
-   .. method:: functools.cache_info()
+   .. method:: lru_cache.cache_info()
       :no-typesetting:
 
    To help measure the effectiveness of the cache and tune the *maxsize*
    parameter, the wrapped function is instrumented with a :func:`!cache_info`
    function that returns a :term:`named tuple` showing *hits*, *misses*,
    *maxsize* and *currsize*.
 
-   .. method:: functools.cache_clear()
+   .. method:: lru_cache.cache_clear()
       :no-typesetting:
 
    The decorator also provides a :func:`!cache_clear` function for clearing or