Fix typo

MockMVc -> MockMvc

src/docs/asciidoc/testing.adoc

@@ -4438,7 +4438,7 @@ in all responses as follows:
 ----
 // static import of MockMvcBuilders.standaloneSetup
 
-MockMVc mockMvc = standaloneSetup(new MusicController())
+MockMvc mockMvc = standaloneSetup(new MusicController())
 		.defaultRequest(get("/").accept(MediaType.APPLICATION_JSON))
 		.alwaysExpect(status().isOk())
 		.alwaysExpect(content().contentType("application/json;charset=UTF-8"))