add custom subdomain (#2)

Author: samos123

docusaurus.config.js

@@ -11,7 +11,7 @@ const config = {
   favicon: "img/favicon.ico",
 
   // Set the production url of your site here
-  url: "https://substratusai.github.io",
+  url: "https://substratus.ai",
   // Set the /<baseUrl>/ pathname under which your site is served
   // For GitHub pages deployment, it is often '/<projectName>/'
   baseUrl: "/",

static/CNAME

@@ -0,0 +1,2 @@
+substratus.ai
+www.substratus.ai