Related entries using Statamic's Suggest fieldtype

my-post.txt

--
title: My Post
related_entries:
  - /blog/related-post-1
  - /blog/related-post-2
---
This is actually your post's md file. I named it txt otherwise Github will try to format it as markdown and it looks funky.

post.html

<h1>{{ title }}</h1>
{{ content }}

<h2>Related Entries</h2>
<ul>
{{ entries:listing folder="blog" conditions="url:{related_entries_option_list}" }}
  <li><a href="{{ url }}">{{ title }}</a></li>
{{ /entries:listing }}
</ul>

post.yaml

fields:
  related_entries:
    type: suggest
    display: Related Entries
    hide_selected: true
    content:
      folder: blog
      label: title
      value: url