base path refactor, more docs

quartz/cfg.ts

@@ -25,7 +25,7 @@ export interface GlobalConfiguration {
   /** Base URL to use for CNAME files, sitemaps, and RSS feeds that require an absolute URL.
   *   Quartz will avoid using this as much as possible and use relative URLs most of the time  
   */
-  canonicalUrl?: string,
+  baseUrl?: string,
   theme: Theme
 }