better wording

Co-authored-by: Michael Hanke <[email protected]>

docs/basics/101-123-config2.rst

@@ -37,7 +37,7 @@ There even is one key word that you recognize: MD5E.
 If you have read the :ref:`Find-out-more on object trees <objecttree>`
 you will recognize it as a reference to the type of
 key used by git-annex to identify and store file content in the object-tree.
-The first row, ``* annex.backend=MD5E``, therefore translates to "Everything should be checksummed with the MD5 hash function".
+The first row, ``* annex.backend=MD5E``, therefore translates to "The ``MD5E`` git-annex backend should be used for any file".
 But what is the rest? We'll start with the last row:
 
 .. code-block:: bash