Changing link to point to existing documentation for installing l10n /...

Changing link to point to existing documentation for installing l10n / localisation packages in Update index.md

docs/wordpress/index.md

@@ -56,7 +56,7 @@ All CiviCRM code and packages used by CiviCRM (such as PEAR libraries) are inclu
 
 ## Get the translations {:#i18n}
 
-The basic CiviCRM release includes support for US English (`en_US`). To use another language or dialect, please [download and extract the translation files](../general/i18n_l10n.md).
+The basic CiviCRM release includes support for US English (`en_US`). To use another language or dialect, please [download and extract the translation files. A guide to help install these can be found [in the System Administration Guide](https://docs.civicrm.org/sysadmin/en/latest/upgrade/wordpress/#install-localization-files-optional).
 
 ## Run the installer