Update Facebook OAuth link

Author: Noxwizard

documentation/content/en/chapters/admin_guide.xml

@@ -281,7 +281,7 @@
 					<title>OAuth Authentication</title>
 					<listitem><para>OAuth requires a key and a secret. These are provided to you from the OAuth provider. Each provider may have a different name for the key and secret</para></listitem>
 					<listitem><para><guilabel>Bitly</guilabel>: Your token information can be found here: <ulink url="https://bitly.com/a/oauth_apps">https://bitly.com/a/oauth_apps</ulink>. Your key is the <emphasis>Client ID</emphasis> and your secret is the <emphasis>Client Secret</emphasis>.</para></listitem>
-					<listitem><para><guilabel>Facebook</guilabel>: You will need to <ulink url="https://www.facebook.com/developers/apps.php">create an application</ulink> on Facebook to obtain your token information. The <emphasis>App ID</emphasis> is your key and the <emphasis>App Secret</emphasis> is your secret.</para></listitem>
+					<listitem><para><guilabel>Facebook</guilabel>: You will need to <ulink url="https://developers.facebook.com/apps/">create an application</ulink> on Facebook to obtain your token information. The <emphasis>App ID</emphasis> is your key and the <emphasis>App Secret</emphasis> is your secret.</para></listitem>
 					<listitem><para><guilabel>Google</guilabel>: Visit the <ulink url="https://console.developers.google.com/">Google Developers Console</ulink> to create a new OAuth Client ID. You can find it on the left side under "APIs and auth --> Credentials". Your <emphasis>Client ID</emphasis> will serve as the key and your <emphasis>Client Secret</emphasis> will serve as the secret. Additionally, you will need to create a "Consent screen" in the Developers Console as well. Specify the following <guilabel>Request URIs</guilabel> when you set up your client ID on the Google Developers Console:</para>
 					<itemizedlist>
 						<listitem><para>http://{your_board_URL}/ucp.php?mode=login&amp;login=external&amp;oauth_service=google</para></listitem>