Apply suggestions from code review

Co-authored-by: Daniël van Noord <[email protected]>

Author: Pierre-Sassoulas

doc/user_guide/installation.rst

@@ -20,10 +20,10 @@ option and setting it to the old interpreter. For example you can check that the
 no ``f-strings`` in Python 3.5 code using Python 3.8 with an up-to-date pylint even if
 Python 3.5 is past end of life (EOL).
 
-We do not guarantee that ``py-version`` will work for all EOL python interpreter indefinitely,
+We do not guarantee that ``py-version`` will work for all EOL python interpreters indefinitely,
 (for anything before python 3.5, it's probably not). If a newer version does not work for you,
 the best available pylint might be an old version that works with your old interpreter but
-without the bug fixes and feature of latest pylints.
+without the bug fixes and feature of later versions.
 
 NB: You can also use ``conda`` or your system package manager on debian based OS.
 These package managers lag a little behind as they are maintained by a separate