Add news entry and clarify another.

Misc/NEWS

@@ -18,6 +18,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #10730: Add SVG mime types to mimetypes module.
+
 - Issue #10768: Make the Tkinter ScrolledText widget work again.
 
 - Issue #10777: Fix "dictionary changed size during iteration" bug in
@@ -341,8 +343,8 @@ Library
   be set to False to turn off the previously undocumented 'popularity'
   heuristic. Patch by Terry Reedy and Eli Bendersky.
 
-- Issue #10534: expose bjunk and bpopular sets; deprecate undocumented and now
-  redundant isbjunk and isbpopular methods.
+- Issue #10534: in difflib, expose bjunk and bpopular sets; deprecate
+  undocumented and now redundant isbjunk and isbpopular methods.
 
 - Issue #9846: zipfile is now correctly closing underlying file objects.