Update FAQ Links

[tw2113]

EDIT: Some of these may be covered by release1140 branch already. Due for a re-review though.

Related: #942 #943 #944

Questions that have links that should be updated:

• What template files should I edit to alter my post type display? -> https://developer.wordpress.org/themes/basics/template-hierarchy/
• How do I display my custom post type on my site? -> https://developer.wordpress.org/reference/classes/wp_query/
• I have added post thumbnail and/or post format support to my post type, but those do not appear when adding a post type post. -> https://developer.wordpress.org/reference/functions/add_theme_support/
• I changed my custom post type name and now I can not get to my posts. How do I get them back? -> https://wordpress.org/plugins/post-type-switcher/

Remove: Do you have any recommendations for an alternative to Visual Composer? Is there any way to get Custom Post Type UI-registered post types working with Visual Composer Media Grid?

Remove Post Type Switcher link for: I changed my custom post type or taxonomy slug and now I have duplicates shown. How do I remove the duplicate?

[tw2113]

Outside of "Remove Post Type Switcher link for: I changed my custom post type or taxonomy slug and now I have duplicates shown. How do I remove the duplicate?" everything was done.