From f19bf578a057f4a28781713f12909a35d3121494 Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Thu, 27 Oct 2016 17:32:38 +0200
Subject: [PATCH] Update doc

---
 README.md | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6d0fb6d..f4b5a2b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,23 @@
 # iptoasn-webservice
-Web service to map IP addresses to AS information, using iptoasn.com
+
+Webservice to map IP addresses to AS information.
+
+This is the source code of the public API from [iptoasn.com](https://iptoasn.com).
+
+Requires [rust-nightly](https://www.rust-lang.org/).
+
+# Usage:
+
+```sh
+$ curl https://api.iptoasn.com/v1/as/ip/<ip address>
+```
+```json
+{
+  "announced": true,
+  "as_country_code": "US",
+  "as_description": "LEVEL3 - Level 3 Communications, Inc.",
+  "as_number": 3356,
+  "first_ip": "4.0.0.0",
+  "last_ip": "4.23.87.255"
+}
+```