Update auth0 (#889)

* Update Auth0 logo

Fix #769

* Update README

images/reference/auth0.svg

@@ -1 +1,7 @@
-<svg width="152" height="168" viewBox="0 0 152 168" xmlns="http://www.w3.org/2000/svg"><title>Slice 1</title><path d="M120.127 135.861l-16.85-51.864 44.107-32.045H92.863L76.011.09l-.005-.014h54.53l16.855 51.871v-.001l.014-.008c9.79 30.092-.292 64.318-27.278 83.923zm-88.234 0l-.014.01 44.119 32.053 44.129-32.062-44.115-32.054-44.119 32.053zM4.624 51.939c-10.304 31.721 1.657 65.333 27.26 83.928l.004-.016L48.74 83.99 4.642 51.951H59.15L76.003.089l.004-.014H21.474L4.624 51.939z" fill="#EB5424" fill-rule="evenodd"/></svg>
+<?xml version="1.0"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="53" height="64" viewBox="0 0 53 64" fill="none">
+<path d="M3.37163 27.7823C13.8466 26.0536 22.0585 17.3818 23.7786 6.88966L24.3558 1.84681C24.4986 1.04545 23.9557 -0.0707301 22.9442 0.00940596C15.0295 0.627599 7.56046 3.24347 3.40592 4.9435C1.34294 5.79065 0 7.79405 0 10.0264V26.4772C0 27.4503 0.874338 28.1944 1.8344 28.0399L3.37163 27.788V27.7823Z" fill="black"/>
+<path d="M28.8312 6.89002C30.557 17.3821 38.7689 26.054 49.2381 27.7826L50.7753 28.0345C51.7354 28.1948 52.6097 27.4507 52.6097 26.4718V10.0211C52.6097 7.78869 51.2668 5.78529 49.2038 4.93814C45.0436 3.23238 37.5803 0.622239 29.6655 0.00404612C28.6483 -0.07609 28.1282 1.05154 28.2483 1.84145L28.8254 6.8843L28.8312 6.89002Z" fill="black"/>
+<path d="M49.2301 32.3907C34.915 35.2184 28.2689 44.7488 28.2689 62.7909C28.2689 63.6953 29.166 64.3249 29.9204 63.8212C36.5036 59.3737 50.9902 47.7654 52.4818 33.2436C52.5389 31.4176 50.2588 32.2762 49.2301 32.3907Z" fill="black"/>
+<path d="M3.37691 32.3907C17.6921 35.2184 24.3382 44.7488 24.3382 62.7909C24.3382 63.6953 23.441 64.3249 22.6867 63.8212C16.1034 59.3737 1.6168 47.7654 0.125285 33.2436C0.0681382 31.4176 2.34828 32.2762 3.37691 32.3907Z" fill="black"/>
+</svg>

images/reference/auth0.url

@@ -0,0 +1 @@
+https://auth0.com/blog/branding-updates/