Fix last newsletter (#395)

Author: nyurik

src/content/news/2025-03-03-maplibre-newsletter-february-2025/index.mdx

@@ -145,7 +145,7 @@ Work is also [progressing on iOS support](https://github.com/josxha/flutter-mapl
   </div>
 </div>
 
-## Martin Tile Format (MLT)
+## MapLibre Tile Format (MLT)
 
 Exciting progress continues on the MapLibre Tile (MLT) format!