Update support links in Railgun docs (#1662)

* Removed mentions in Railgun docs

* Fixed another broken link

Author: kodster28

products/railgun/src/content/user-guide/administration.md

@@ -19,7 +19,7 @@ Railgun can be load-balanced and multiple Railgun daemons can be used per activa
 1. Within your Railgun configuration file, update `activation.public_ip` to the public IP or a hostname which resolves to the public IP of your Railgun’s server and set the `activation.token` to the activation key displayed on the page.
 1. Start the Railgun daemon so that it can proceed with activation.
 1. If everything went smoothly, the red icon will change to a green check-mark after refreshing the page and the Railgun can then be toggled on.
-1. If the Railgun fails to activate, check your logs for errors and [contact support](mailto:support@cloudflare.com) if the issue persists.
+1. If the Railgun fails to activate, check your logs for errors and [contact support](https://support.cloudflare.com/hc/articles/200172476) if the issue persists.
 
 ## Enabling Railgun
 

products/railgun/src/content/user-guide/introduction.md

@@ -80,9 +80,7 @@ Typically, the markup of websites, or the body a JSON API response, does not cha
 
 ## Support
 
-Support requests can be made through normal channels via [email](mailto:[email protected]) or https://support.cloudflare.com.
-
-Where possible you should provide:
+When contacting [Cloudflare Support](https://support.cloudflare.com/hc/articles/200172476), provide the following information (if accessible):
 * Your `railgun.conf` and `railgun-nat.conf` (if applicable) files.
 * Output from `/var/log/messages` from Railgun.
 * A copy of `/var/log/railgun/panic.log`, if not empty.

products/railgun/src/content/user-guide/set-up/configuration-activation.md

@@ -26,7 +26,7 @@ Oct 27 22:29:41 www rg-listener: [Activation] Assigned Railgun ID: 1
 Oct 27 22:29:41 www rg-listener: [Activation] Acquired cert from server
 ```
 
-If there is a certificate error in the system log or during startup, ensure that the necessary certificate bundle is installed as described in [Preparing the Environment](/user-guide/installation#preparing-the-environment) above so that Railgun may connect securely back to Cloudflare’s activation servers.
+If there is a certificate error in the system log or during startup, ensure that the necessary certificate bundle is installed as described in [Preparing the Environment](/user-guide/set-up/preparing-environment) above so that Railgun may connect securely back to Cloudflare’s activation servers.
 
 As an example, we are going to use domain port2408.net. The newly generated certificate is signed against the port2408.net domain and our system will automatically set your new port2408.net subdomain to resolve to the IP specified by `activation.public_ip`. You can use this hostname to test Railgun without enabling the service for all users. More details are in the [Testing Railgun](/user-guide/installation#testing-railgun) section below.