gh-143434: Fix typo in zstd documentation (GH-143437)

(cherry picked from commit 240a6c3)

Co-authored-by: Ritam Pal <ritamjunior26@gmail.com>

Author: RitamPal26

Doc/library/compression.zstd.rst

@@ -73,7 +73,7 @@ Reading and writing compressed files
    argument is not None, a :exc:`!TypeError` will be raised.
 
    When writing, the *options* argument can be a dictionary
-   providing advanced decompression parameters; see
+   providing advanced compression parameters; see
    :class:`CompressionParameter` for detailed information about supported
    parameters. The *level* argument is the compression level to use when
    writing compressed data. Only one of *level* or *options* may be non-None.
@@ -117,7 +117,7 @@ Reading and writing compressed files
    argument is not None, a :exc:`!TypeError` will be raised.
 
    When writing, the *options* argument can be a dictionary
-   providing advanced decompression parameters; see
+   providing advanced compression parameters; see
    :class:`CompressionParameter` for detailed information about supported
    parameters. The *level* argument is the compression level to use when
    writing compressed data. Only one of *level* or *options* may be passed. The