Add link for CE EULA

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

_includes/pricing-page/pricing-cards.html

@@ -35,7 +35,7 @@
                                 <path d="M1412 734q0-28-18-46l-91-90q-19-19-45-19t-45 19l-408 407-226-226q-19-19-45-19t-45 19l-91 90q-18 18-18 46 0 27 18 45l362 362q19 19 45 19 27 0 46-19l543-543q18-18 18-45zm252 162q0 209-103 385.5t-279.5 279.5-385.5 103-385.5-103-279.5-279.5-103-385.5 103-385.5 279.5-279.5 385.5-103 385.5 103 279.5 279.5 103 385.5z">
                                 </path>
                             </svg>
-                            Source license: OpenFaaS CE EULA.
+                            <a class="underline-on-hover has-text-grey-dark" href="https://github.com/openfaas/faas/blob/master/EULA.md">Source-code license: OpenFaaS CE EULA</a>.
                         </li>
 
                         <h3 class="mb-3" style="font-weight: bold;">Functions</h3>