Update v4.1 release notes with localization details

Added information about Canadian internationalizations in v4.1.

Author: Bubballoo3

source/release-notes/v4.1-release-notes.rst

@@ -37,6 +37,8 @@ Accessibility and Usability
 * Any UX or UI stuff
 * Accessibility improvements
 
+Open OnDemand v4.1 will be the first to include Canadian internationalizations in both English and French, thanks to Rahim Khoja of the University of Alberta. This adds to pre-existing internationalizations for American English, Chinese, and Japanese. It is easy to :ref:`customize or generate your own localization files` <customization_localization>`, and we greatly appreciate community contributions for languages we do not include by default.
+
 Interactive Jobs and Applications
 ---------------------------------
 * Batch Connect