Add some sort of "related links" feature to topics

Here are several topics with suggestions about it:
https://tildes.net/~tildes/6w8/site_idea_gather_links_from_multiple_sources_on_the_same_topics_and_put_them_together
https://tildes.net/~tildes/6qq/linking_related_topics_together_like_a_futher_reading_list

Edited Sep 28, 2018 by cfabbro

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