添加布局算法并在新建窗口时应用规则

src/config.h

@@ -5,6 +5,7 @@
 #include <xcb/xproto.h>
 
 #include "action.h"
+#include "layout.h"
 #include "types.h"
 
 /* 壁纸列表，支持通配符和 shell 环境变量拼接 */
@@ -44,6 +45,12 @@ const char *const default_monitor_tags[] = {
   "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL,
 };
 
+const layout_t layouts[] = {
+  {"[]=", tile},
+  {"[M]", monocle},
+  {"><>", NULL},
+};
+
 /* 新建窗口规则，以 NULL 结束 */
 const rule_t rules[] = {
   /* client 固定规则 */