Update README.rst (#1620)

Edit the line about end-of-life Pythons and link to the Python version support page.

README.rst

@@ -78,8 +78,8 @@ plone.restapi 8 requires Python 3 and works with Plone 5.2 and Plone 6.x.
 
 plone.restapi 8 does not officially support Python 3.6.
 
-Python versions that reached there End-of-Live (EOL), like Python 3.6 might still work.
-Though, we do not guarantee this in any way.
+Python versions that reached their `end-of-life <https://devguide.python.org/versions/>`_,
+including Python 3.6, might still work, but the maintainers do not guarantee this in any way.
 
 Use plone.restapi 7 if you are running Python 2.7 or Plone versions below 5.2.