Update _compression rename to reflect review

Author: emmatyping

peps/pep-0784.rst

@@ -227,7 +227,7 @@ documentation when the minimum supported Python version requirements make
 that feasible.
 
 The ``_compression`` module, given that it is marked private, will be
-immediately renamed to ``compression._common.streams``. The new name was
+immediately renamed to ``compression._common._streams``. The new name was
 selected due to the current contents of the module being I/O related helpers
 for stream APIs (e.g. ``LZMAFile``) in standard library compression modules.