- Add CC-BY license for BIP75

Author: Matt David

bip-0075.mediawiki

@@ -21,6 +21,12 @@ This BIP is an extension to BIP 70 that provides two enhancements to the existin
 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and 
 "OPTIONAL" in this document are to be interpreted as described in RFC 2119.
 
+==Copyright==
+
+<img src="https://licensebuttons.net/l/by/3.0/88x31.png">
+
+This BIP is licensed under CC BY.
+
 ==Definitions==
 {| class="wikitable"
 | Sender    || Entity wishing to transfer value that they control