Minor doc update

Issue: SPR-12375

src/asciidoc/index.adoc

@@ -30298,6 +30298,11 @@ application shows a multi-action controller using `@RequestMapping`:
 	}
 ----
 
+The above example does not specify GET vs. PUT, POST, and so forth, because
+`@RequestMapping` maps all HTTP methods by default. Use `@RequestMapping(method=GET)`
+to narrow the mapping.
+
+
 [[mvc-ann-requestmapping-proxying]]
 ===== ++@Controller++'s and AOP Proxying