Merge pull request #36553 from tatsuyafw/fix-robots-txt-url

Replace the www.robotstxt.org URL with https one [ci skip]

guides/source/configuring.md

@@ -1535,7 +1535,7 @@ Disallow: /
 ```
 
 To block just specific pages, it's necessary to use a more complex syntax. Learn
-it on the [official documentation](http://www.robotstxt.org/robotstxt.html).
+it on the [official documentation](https://www.robotstxt.org/robotstxt.html).
 
 Evented File System Monitor
 ---------------------------

railties/lib/rails/generators/rails/app/templates/public/robots.txt

-# See http://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file
+# See https://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file