update：readme新增migration说明

README.md

@@ -7,4 +7,25 @@
 22-11-23：测试环境新增CI/CD，以后合并代码至test分支后，测试服务器（36.133.149.222:8848）将自动拉取最新代码并部署（DEBUG模式）
 **_TODO: 服务器环境需要建立一个conda._**
 # requirements:
-django 3.1.4
+django 3.1.4
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+
+## 查询是否有未运行的migration，前面没得X的就是没运行的:
+`
+PS C:\Program Files\Python36> .\python.exe E:\datacenter\manage.py showmigrations
+E:\datacenter\utils\views.py:29: CryptographyDeprecationWarning: Python 3.6 is no longer supported by the Python core team. Therefore, support for it is deprecated in cryptography and will be removed in a future release.
+  from cryptography.fernet import Fernet
+admin
+ [X] 0001_initial
+ [X] 0002_logentry_remove_auto_add
+ [X] 0003_logentry_add_action_flag_choices
+auth
+ [X] 0001_initial
+ [X] 0002_alter_permission_name_max_length
+ [X] 0003_alter_user_email_max_length
+ [X] 0004_alter_user_username_opts
+ [X] 0005_alter_user_last_login_null
+ [X] 0006_require_contenttypes_0002
+ [X] 0007_alter_validators_add_error_messages
+ [X] 0008_alter_user_username_max_length
+ [X] 0009_alter_user_last_name_max_length
+`
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