docs: update the newsletter (July 2024)

Provide transparency into what is happening in the project.

Signed-off-by: Claudio André <[email protected]>

Author: claudioandre-br

docs/newsletter.md

@@ -33,7 +33,7 @@ Also:
 
 ## Project Next Steps: what will happen
 
-- [NOTHING yet];
+- drop the obsolete and exotic AVX512F.
 
 ## Project Expectations: what will probably (is expect to) happen