WordPress post type and taxonomy setup for a knowledge base.

functions.php

<?php

add_action( 'init', 'kb_register_post_types' );
function kb_register_post_types() {

  register_post_type( 'kb_article', array(
    'labels' => array(
      'name' => 'Articles',
      'singular_name' => 'Article',
      'menu_name' => 'Knowledge Base',
      'name_admin_bar' => 'KB Article',
      'all_items' => 'Articles',
      'add_new_item' => 'Add New Article',
      'edit_item' => 'Edit Article',
      'new_item' => 'New Article',
      'view_item' => 'View Article',
      'search_items' => 'Search Articles',
      'not_found' => 'No articles found.',
      'not_found_in_trash' => 'No articles found in trash.'
    ),
    'public' => true,
    'menu_icon' => 'dashicons-sos',
    'rewrite' => array(
      'slug' => 'kb',
      'with_front' => false
     ),
    'has_archive' => true,
    'supports' => array(
      'title',
      'editor',
      'revisions'
     ),
  ) );

}

add_action( 'init', 'kb_register_taxonomies' );
function kb_register_taxonomies() {

  register_taxonomy( 'kb_category', 'kb_article', array(
    'hierarchical' => true,
    'rewrite' => array(
     'slug' => 'category',
     'with_front' => false,
    )
  ) );

}

instructions.md

Paste the above code into your functions.php file. You may find the Custom Post Type Permalinks plugin useful for customizing permalinks on a per-post-type basis.