List alternative / similar modules

Problem/Motivation

Hi,

it would be nice if you could list these alternatives on the module page:

• https://www.drupal.org/project/metatag_page_heading →
• https://www.drupal.org/project/node_title_ps →

They're already listing this module.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes