update sa-token-doc/doc/use/at-check.md.

sa-token-doc/doc/use/at-check.md

@@ -25,6 +25,7 @@ public class SaTokenConfigure implements WebMvcConfigurer {
 	// 注册sa-token的注解拦截器，打开注解式鉴权功能 
 	@Override
 	public void addInterceptors(InterceptorRegistry registry) {
+                // 注册注解拦截器，并排除不需要注解鉴权的接口地址 (与登录拦截器无关)
 		registry.addInterceptor(new SaAnnotationInterceptor()).addPathPatterns("/**");	
 	}
 }