adding sponsor

Author: jonathanwalker

config/_default/languages.toml

@@ -5,5 +5,5 @@
   [en.params]
     languageISO = "EN"
     languageTag = "en-US"
-    footer = 'Brought to you by Jonathan Walker'
+    footer = 'Brought to you by <a href="https://securityrunners.io">Security Runners</a>'
     alertText = '<a class="alert-link stretched-link fw-normal" href="/blog/example-post/">Doks version 1.0 just shipped!</a>'