ex_conf_template.txt: update description to baseUrl

extension/ext_conf_template.txt

@@ -16,7 +16,7 @@ cmdConvert = convert
 # cat=config/config; type=string; label=Command 'wkhtmltopdf':Default is '/opt/wkhtmltox/bin/wkhtmltopdf'. Command to convert a HTML page to a PDF.
 cmdWkhtmltopdf = /opt/wkhtmltox/bin/wkhtmltopdf
 
-# cat=config/config; type=string; label=Base URL of the current Typo3 installation:Default is empty. Example: https://your.base.url/including/sub/dir. Will be used to convert local pages to PDF. For accessing protected pages, the current FE User session will be faked - therefore the exact URL is needed that cookies become valid.
+# cat=config/config; type=string; label=Base URL of the current Typo3 installation:Default is empty. Example: https://your.base.url/including/sub/dir. Will be used to convert local pages to PDF. In special cases https://localhost/including/sub/dir might be necessary. Use {{baseUrl:Y}} whenever the own URL should be displayed.
 baseUrl =
 
 # cat=config/email; type=string; label=Options for SendEMail:Default is empty. General options. Check: http://caspian.dotconf.net/menu/Software/SendEmail. E.g.: 'sendEMail=-o tls=yes'