Adds Telegram to social integrations (alshedivat#992)

_config.yml

@@ -71,6 +71,7 @@ gitlab_username: # your GitLab user name
 twitter_username: chertianser # your Twitter handle
 mastodon_username: # your mastodon instance+username in the format instance.tld/@username
 linkedin_username: chertianser # your LinkedIn user name
+telegram_username: # your Telegram user name
 scholar_userid: -bvYUPIAAAAJ # your Google Scholar ID
 semanticscholar_id: # your Semantic Scholar ID
 whatsapp_number: # your WhatsApp number (full phone number in international format. Omit any zeroes, brackets, or dashes when adding the phone number in international format.)

_includes/metadata.html

@@ -91,6 +91,10 @@
         {%- capture link -%}https://github.com/{{ site.github_username }}{%- endcapture -%}
         {%- assign sameaslinks = sameaslinks | push: link -%}
     {%- endif -%}
+    {%- if site.telegram_username -%}
+        {%- capture link -%}https://telegram.me/{{ site.telegram_username }}{%- endcapture -%}
+        {%- assign sameaslinks = sameaslinks | push: link -%}
+    {%- endif -%}
     {%- if site.linkedin_username -%}
         {%- capture link -%}https://www.linkedin.com/in/{{ site.linkedin_username }}{%- endcapture -%}
         {%- assign sameaslinks = sameaslinks | push: link -%}

_includes/social.html

@@ -1,6 +1,9 @@
             {%- if site.email -%}
             <a href="mailto:{{ site.email | encode_email }}" title="email"><i class="fas fa-envelope"></i></a>
             {% endif %}
+            {%- if site.telegram_username -%}
+            <a href="https://telegram.me/{{ site.telegram_username }}" title="telegram"><i class="fab fa-telegram"></i></a>
+            {% endif %}
             {%- if site.whatsapp_number -%}
             <a href="https://wa.me/{{ site.whatsapp_number }}" title="whatsapp"><i class="fab fa-whatsapp"></i></a>
             {% endif %}