From 9d79c36b00e8403432eed14e934df88b84749307 Mon Sep 17 00:00:00 2001
From: Simon Lieb <pips@e5150.fr>
Date: Wed, 2 Oct 2019 19:11:01 +0200
Subject: [PATCH] README: add file format description

---
 README.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/README.md b/README.md
index 6a7cbc2..d7a8619 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,14 @@ Usage
   $ stt -s      # stop task
   $ stt [-l]    # print report
 
+Files
+-----
+
+If current working directory contains a `.ttimes` file it will be used
+otherwise it will create or use `~/.ttimes`.
+
+File format looks like:
+
+	<start-unix-timestamp>;<end-unix-timestamp>;<task>
+
+Zero value end timestamp means task is still running.