修改readme

extend/catcher/command/install/InstallCatchModuleCommand.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * @filename  InstallCatchModuleCommand.php
+ * @createdAt 2020/2/24
+ * @project  https://github.com/yanwenwu/catch-admin
+ * @document http://doc.catchadmin.com
+ * @author   JaguarJack <njphper@gmail.com>
+ * @copyright By CatchAdmin
+ * @license  https://github.com/yanwenwu/catch-admin/blob/master/LICENSE.txt
+ */
+namespace catcher\command;
+
+use think\console\Command;
+use think\console\Input;
+use think\console\input\Argument;
+use think\console\input\Option;
+use think\console\Output;
+
+class InstallCatchModuleCommand extends Command
+{
+    protected function configure()
+    {
+      $this->setName('install:module')
+           ->addArgument('module', Argument::REQUIRED, 'module name')
+           ->addOption('modue', '-r',Option::VALUE_NONE, 'reinstall back')
+           ->setDescription('install catch module');
+    }
+
+    protected function execute(Input $input, Output $output)
+    {
+    }
+
+    protected function searchModule()
+    {
+
+    }
+
+    protected function getModule()
+    {
+
+    }
+
+
+    protected function download()
+    {
+
+    }
+
+
+    protected function install()
+    {
+
+    }
+
+    
+    protected function update()
+    {
+
+    }
+
+}