DOC: edits to text

Co-authored-by: Tim Hoffmann <[email protected]>

Author: tacaswell

doc/devel/min_dep_policy.rst

@@ -51,10 +51,11 @@ versions no longer support our minimum NumPy or Python.
 
 We will work around bugs in our dependencies when practical.
 
-IPython and Matplotlib do not technically depend on each other, however there
-is practical coupling between the projects.  There is no dependency to update,
+IPython and Matplotlib do not formally depend on each other, however there
+is practical coupling for the integration of Matplotlib into Ipython.
 but we will ensure the integration works with at least minor or major versions
-of IPython released in the 24 months prior to our planned release date.  We
+of IPython released in the 24 months prior to our planned release date.
+Matplotlib may or may not work with older versions and we
 will not warn if used within an IPython outside of this window.