diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1 +1,9 @@
 # qr
+
+Generate a QR code for a given web URL
+
+## Usage
+
+https://qr.cluster.fun/?website=YOUR_WEBSITE_URL
+
+e.g. https://qr.cluster.fun/?website=https://bbc.com
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