README.activity-report: Add note about getting a new cover design.

* README.activity-report: Add note about the cover.

README.activity-report

@@ -14,6 +14,7 @@ for any doubt, ask!
 
 * Check list [0/11]
 ** TODO **Clone** the Git repository https://gitlab.inria.fr/guix-hpc/website
+** TODO **August**: Get in touch with a designer such as [[https://luis-felipe.gitlab.io/][Luís Felipe]] and order a new cover; financial support can be solicited from [[https://foundation.guix.info][Guix Foundation]]
 ** TODOs [0/5] **November**: Open the activity report
 *** TODO Create the folder drafts/ if required
 *** TODO Create the markwdown file drafts/activity-report-20XY.md and insert the template (see below)