docs(readme): add license badge

Signed-off-by: r3drun3 <simone.ragonesi@sighup.io>
R3DRUN3 · Oct 5, 2023 · f6ad872 · f6ad872
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commit f6ad872
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diff --git a/README.md b/README.md
@@ -1,5 +1,8 @@
 # NostrO
+[![License: ODbL](https://img.shields.io/badge/License-PDDL-brightgreen.svg)](https://opendatacommons.org/licenses/pddl/)  
+
 Nostr Osint Tool  
 
+
 <img src="images/logo.png" alt="Nostr Logo" width="300" height="200">