Fix links in Geo documentation code comments

doc/administration/geo/replication/configuration.md

@@ -190,7 +190,7 @@ keys must be manually replicated to the **secondary** site.
    ```ruby
    ##
    ## The unique identifier for the Geo site. See
-   ## https://docs.gitlab.com/ee/administration/geo_nodes.html#common-settings
+   ## https://docs.gitlab.com/ee/administration/geo_sites.html#common-settings
    ##
    gitlab_rails['geo_node_name'] = '<site_name_here>'
    ```

doc/administration/geo/replication/multiple_servers.md

@@ -67,7 +67,7 @@ The following steps enable a GitLab site to serve as the Geo **primary** site.
    ```ruby
    ##
    ## The unique identifier for the Geo site. See
-   ## https://docs.gitlab.com/ee/administration/geo_nodes.html#common-settings
+   ## https://docs.gitlab.com/ee/administration/geo_sites.html#common-settings
    ##
    gitlab_rails['geo_node_name'] = '<site_name_here>'
 
@@ -217,7 +217,7 @@ then make the following modifications:
 
    ##
    ## The unique identifier for the Geo site. See
-   ## https://docs.gitlab.com/ee/administration/geo_nodes.html#common-settings
+   ## https://docs.gitlab.com/ee/administration/geo_sites.html#common-settings
    ##
    gitlab_rails['geo_node_name'] = '<site_name_here>'
 
@@ -318,7 +318,7 @@ application nodes above, with some changes to run only the `sidekiq` service:
 
    ##
    ## The unique identifier for the Geo site. See
-   ## https://docs.gitlab.com/ee/administration/geo_nodes.html#common-settings
+   ## https://docs.gitlab.com/ee/administration/geo_sites.html#common-settings
    ##
    gitlab_rails['geo_node_name'] = '<site_name_here>'
 

doc/administration/geo/setup/database.md

@@ -75,7 +75,7 @@ There is an [issue where support is being discussed](https://gitlab.com/gitlab-o
    ```ruby
    ##
    ## The unique identifier for the Geo site. See
-   ## https://docs.gitlab.com/ee/administration/geo_nodes.html#common-settings
+   ## https://docs.gitlab.com/ee/administration/geo_sites.html#common-settings
    ##
    gitlab_rails['geo_node_name'] = '<site_name_here>'
    ```

doc/administration/geo/setup/external_database.md

@@ -39,7 +39,7 @@ developed and tested. We aim to be compatible with most external
 
    ##
    ## The unique identifier for the Geo site. See
-   ## https://docs.gitlab.com/ee/administration/geo_nodes.html#common-settings
+   ## https://docs.gitlab.com/ee/administration/geo_sites.html#common-settings
    ##
    gitlab_rails['geo_node_name'] = '<site_name_here>'
    ```