feat: 增加 post-commit 钩子；增加 README

README.md

@@ -0,0 +1,8 @@
+### post-commit
+Script to ensure a tag for the current month exists.
+每次提交时，检查是否存在当前月份的tag，如果不存在则创建一个。
+
+#### usage
+```shell
+$ cp /path/to/your/git/hooks/post-commit /path/to/your/git/repo/.git/hooks/
+```

post-commit

@@ -0,0 +1,21 @@
+#!/bin/sh
+# Script to ensure a tag for the current month exists
+
+# Get the current year and month
+YEAR_MONTH=$(date +%Y%m)
+
+# Format the tag as v{year}{month}
+TAG_NAME="v$YEAR_MONTH"
+
+# Check if the tag already exists
+if ! git rev-parse -q --verify "refs/tags/$TAG_NAME" >/dev/null; then
+    echo "Creating new tag for this month: $TAG_NAME"
+    # Create the tag
+    git tag -a "$TAG_NAME" -m "Monthly tag for $TAG_NAME"
+    # Optionally, you can push the tag to a remote repository
+    git push origin "$TAG_NAME"
+else
+    echo "Tag for this month already exists: $TAG_NAME"
+fi
+
+