Adjust 'sitemap' and 'enableRobotsTXT' settings to match settings syntax from theme (a.k.a. add descriptions)

config.yaml

@@ -132,8 +132,16 @@ menu:
     url: https://chaos.social/@dezentrale
     weight: 30
 
-sitemap:
-  changefreq: weekly
-  filename: sitemap.xml
 
+# Enable generation of robots.txt
 enableRobotsTXT: true
+
+# Configure sitemap
+sitemap:
+  # Values are 'always', 'hourly', 'daily',' weekly', 'monthly', 'yearly',
+  # and 'never'. Set to empty string to omit inclusion
+  changefreq: weekly
+  # Adjust filename of sitemap. (default: sitemap.xml)
+  filename: sitemap.xml
+  # Values range from 0.0 to 1.0. Set to -1 to omit inclusion
+  priority: -1