Use wikipedia/wikimedia URL shortener

appendix_license_notices.asciidoc

@@ -11,12 +11,12 @@ Material was sourced from various public and open-licensed sources:
 * https://wiki.ion.radar.tech[ION Lightning Network Wiki]
 * https://medium.com/suredbits/lightning-101-what-is-a-lightning-invoice-d527db1a77e6["Lightning 101: What Is a Lightning Invoice?" by Suredbits]
 * https://github.com/lightningnetwork/lightning-rfc[Lightning Network In-Progress Specifications GitHub]; Creative Commons Attribution (CC-BY 4.0)
-* https://en.wikipedia.org/w/index.php?title=Elliptic-curve_Diffie%E2%80%93Hellman&oldid=836070673[Wikipedia page, "Elliptic-curve Diffie–Hellman"]
-* https://en.wikipedia.org/w/index.php?title=Digital_signature&oldid=876680165[Wikipedia page, "Digital signature"]
-* https://en.wikipedia.org/w/index.php?title=Cryptographic_hash_function&oldid=868055371[Wikipedia page, "Cryptographic hash function"]
-* https://en.wikipedia.org/w/index.php?title=Onion_routing&oldid=870849217[Wikipedia page, "Onion routing"]
-* https://commons.wikimedia.org/wiki/File:Lightning_Network_Protocol_Suite.png[Wikimedia Commons, "Lightning Network Protocol Suite"]
-* https://commons.wikimedia.org/wiki/File:Introduction_to_the_Lightning_Network_Protocol_and_the_Basics_of_Lightning_Technology_(BOLT_aka_Lightning-rfc).pdf[Wikimedia Commons, "Introduction to the Lightning Network Protocol and the Basics of Lightning Technology"]
+* https://w.wiki/4QCL[Wikipedia page, "Elliptic-curve Diffie–Hellman"]
+* https://w.wiki/4QCX[Wikipedia page, "Digital signature"]
+* https://w.wiki/4QCb[Wikipedia page, "Cryptographic hash function"]
+* https://w.wiki/4QCc[Wikipedia page, "Onion routing"]
+* https://w.wiki/4QCd[Wikimedia Commons, "Lightning Network Protocol Suite"]
+* https://w.wiki/4QCf[Wikimedia Commons, "Introduction to the Lightning Network Protocol and the Basics of Lightning Technology"]
 
 === BTCPay Server