mkdocs-material/material/partials/source.html

{% set platform = config.extra.repo_icon or repo_url %}
{% if "github" in platform %}
  {% set repo_icon = "md-source--github" %}
{% elif "gitlab" in platform %}
  {% set repo_icon = "md-source--gitlab" %}
{% elif "bitbucket" in platform %}
  {% set repo_icon = "md-source--bitbucket" %}
{% else %}
  {% set repo_icon = "" %}
{% endif %}
<a href="{{ repo_url }}" title="Go to repository" class="md-source {{ repo_icon }}">
  <div class="md-source__repository">
    {{ repo_name }}
    <ul class="md-source__facts">
      {% if config.extra.version %}
        <li class="md-source__fact">v{{ config.extra.version }}</li>
      {% endif %}
    </ul>
  </div>
</a>