Improve 2012/grothe/try.sh + other minor fixes

The try section in the README.md file did not refer to the script.

The URL in the cookie recipe file was updated to refer to the domain
that the old one redirects to just in case the old one ever expires or
no longer redirects to the more recent domain. The thanks file notes
this for reference as an aside for context and historical purposes,
noting both URLs.

thanks-for-help.md

@@ -3759,6 +3759,13 @@ restrict them.
 
 Cody also restored the original code from the archive.
 
+And although the URL works for now (via redirect), Cody changed the website
+linked to in the recipe file to the domain that the old one currently redirects
+to, in case the other domain ends up expiring or stops redirecting to the more
+recent domain. For historical purposes the old link was
+`http://recipes.stevex.net/` but it redirects to `https://www.mealsteps.com`
+which the recipe file now links to.
+
 
 ## <a name="2012_hamano"></a>[2012/hamano](/2012/hamano/hamano.c) ([README.md](/2012/hamano/README.md]))