🔧 Chore: add option --merge to checker command

README.md

@@ -34,7 +34,7 @@ git submodule add https://github.com/Lruihao/FixIt.git themes/FixIt
 And later you can update the submodule in your site directory to the latest commit using this command:
 
 ```bash
-git submodule update --remote
+git submodule update --remote --merge
 ```
 
 Or use shell command `fixit_checker.sh` to update and commit in the theme directory.

README.zh-cn.md

@@ -34,7 +34,7 @@ git submodule add https://github.com/Lruihao/FixIt.git themes/FixIt
 之后，你可以在站点目录通过这条命令来将主题更新至最新版本：
 
 ```bash
-git submodule update --remote
+git submodule update --remote --merge
 ```
 
 或者在主题目录中使用 shell 命令 `fixit_checker.sh` 将主题更新至最新版本：

fixit_checker.sh

@@ -1,5 +1,5 @@
 echo "Checking for FixIt updates ..."
 cd ../..
-git submodule update --remote
+git submodule update --remote --merge
 git add themes/FixIt
 git commit -m ":arrow_up: Chore: update FixIt theme version"