From c73bf4b1fa9a1d0251c7d2aa145df42e6386a297 Mon Sep 17 00:00:00 2001
From: Pedro Albanese <68971450+pedroalbanese@users.noreply.github.com>
Date: Mon, 5 Apr 2021 19:27:07 -0300
Subject: [PATCH] Update README.md

---
 README.md | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 4201198..c80fe90 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,16 @@
-# sha3sum
\ No newline at end of file
+# sha3sum
+
+<PRE>
+SHA3 Keccak Hashsum Tool - ALBANESE Lab (c) 2020-2021
+
+Usage of sha3sum:
+sha3sum [-v] [-b N] [-c <hash.ext>] -t <file.ext>
+
+  -b int
+        Bits: 224, 256, 384 and 512. (default 224)
+  -c string
+        Check hashsum file.
+  -t string
+        Target file/wildcard to generate hashsum list.
+  -v    Verbose mode. (The exit code is always 0 in this mode)
+  </PRE>