docs: add readme

.gitea/workflows/cron.yml

@@ -1,6 +1,8 @@
 name: Create Scripts
 on:
   push:
+    paths-ignore:
+      - "**.md"
   schedule:
     - cron: 0 5 * * *
 jobs:
@@ -21,4 +23,4 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: chn_list.rsc
-          path: chn_list.rsc
+          path: chn_list.rsc

README.md

@@ -0,0 +1,21 @@
+# Mikrotik Router Switch
+
+For policy routing at china and foreign countries with Mikrotik RouterOS.
+
+## Quick Start
+
+Flush address list.
+
+```
+:foreach i in=[/ip firewall mangle find comment=\"breakwall\"] do={ /ip firewall mangle disable $i }
+:foreach i in=[ find list=$address_list ] do={ remove number=$i }
+```
+
+Upload chn_list.rsc script to your router, then run import command.
+
+```
+/import chn_list.rsc
+```
+
+> If there have any firewall rules that depends on the address list 'chn_list', for example mangle rules, disable
+> mangle rules before flush, and enable it after import.