Merge pull request micropython#8195 from dhalbert/8.2.x-backport-8125…

…-zlib-docs

8.2.x backport 8125 zlib docs

shared-bindings/zlib/__init__.c

@@ -48,9 +48,7 @@
 //| (commonly used in zlib library and gzip archiver). Compression is not yet implemented."""
 //|
 
-//| def zlib_decompress(
-//|     data: bytes, wbits: Optional[int] = 0, bufsize: Optional[int] = 0
-//| ) -> bytes:
+//| def decompress(data: bytes, wbits: Optional[int] = 0, bufsize: Optional[int] = 0) -> bytes:
 //|     """Return decompressed *data* as bytes. *wbits* is DEFLATE dictionary window
 //|     size used during compression (8-15, the dictionary size is power of 2 of
 //|     that value). Additionally, if value is positive, *data* is assumed to be