chore: add project links

README.md

@@ -2,8 +2,14 @@
 
 A cli using https://github.com/mozilla/authenticator-rs
 
+Awesome webauthn:
+* https://github.com/herrjemand/awesome-webauthn
+
 Hard U2F projects:
 * https://github.com/google/OpenSK
+* https://github.com/solokeys/solo
+* https://github.com/conorpp/u2f-zero
+* https://github.com/makerdiary/nrf52-u2f
 
 Soft U2F projects:
 * https://github.com/github/SoftU2F