From 33127ff6d61c79943f512486cea038b8783d11ac Mon Sep 17 00:00:00 2001
From: owen <wenyuouyang@outlook.com>
Date: Thu, 15 Aug 2024 11:48:05 +0800
Subject: [PATCH] update readme

---
 README.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index bee17c9..26266d8 100644
--- a/README.md
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@@ -16,7 +16,13 @@
 
 ## Features
 
--   TODO
+This is a very basic package that contains some commonly used functions in hydrological modeling. The functions are organized into several modules, including:
+
+- hydro_arithmetic: Arithmetic operations for hydrological variables
+- hydro_file: File operations for hydrological variables
+- hydro_plot: Plotting functions for hydrological variables
+- hydro_stat: Statistical functions for hydrological variables
+- hydro_time: Time series operations for hydrological variables
 
 ## Credits