mmistakes#1656: Update example Reddit social share interpolation synt…

…ax (mmistakes#1657)

docs/_docs/10-layouts.md

@@ -716,7 +716,7 @@ If you'd like to add, remove, or change the order of these default links you can
 Let's say you wanted to replace the Google+ button with a Reddit one. Simply replace the HTML with the following:
 
 ```html
-{% raw %}<a href="https://www.reddit.com/submit?url={{ page.url | relative_url }}&title={{ page.title }}" class="btn" title="{{ site.data.ui-text[site.locale].share_on_label }} Reddit"><i class="fab fa-fw fa-reddit" aria-hidden="true"></i><span> Reddit</span></a>{% endraw %}
+{% raw %}<a href="https://www.reddit.com/submit?url={{ page.url | absolute_url | url_encode }}&title={{ page.title }}" class="btn" title="{{ site.data.ui-text[site.locale].share_on_label }} Reddit"><i class="fab fa-fw fa-reddit" aria-hidden="true"></i><span> Reddit</span></a>{% endraw %}
 ```
 
 The important parts to change are: