chore(docs): fix

Signed-off-by: Evgeniy Frolov <[email protected]>

_includes/_common/publications.html

@@ -55,7 +55,7 @@ <h2 class="publications-page__title">{{ page.title }}</h2>
                             <a href="{{ custom.url }}" class="publications__btn" target="_blank">
                                 {%- if custom.service_name == "github.io" %}
                                     {{ i18n.custom_url_btn_title }}{{ custom.service_name }}
-                                {%- endif}
+                                {%- endif -%}
                                 {{ i18n.custom_url_btn_title_prefix }}{{ custom.service_name }}
                             </a>
                             {%- endfor -%}