Exclude site from link-check to avoid frequent timeouts

Author: chuckhoupt

docs/GNUmakefile

@@ -53,6 +53,7 @@ test-site : site
 	--internal-domains "alsprolog.com" \
 	--check-html --check-img-http --check-opengraph --check-sri \
 	--url-ignore /mitp-content-server.mit.edu/ \
+	--url-ignore /www.thecrazyones.it/ \ # Often rejects connections
 	--check-external-hash --empty-alt-ignore _site
 
 ## Test local docs