Remove whitespace in SVG includes.

_includes/docs-navbar.html

 <header class="navbar navbar-expand navbar-dark flex-column flex-md-row bd-navbar">
   <a class="navbar-brand mr-0 mr-md-2" href="{{ site.baseurl }}/" aria-label="Bootstrap">
-    {% include icons/bootstrap.svg width="36" height="36" class="d-block" %}
+    {%- include icons/bootstrap.svg width="36" height="36" class="d-block" -%}
   </a>
 
   <div class="navbar-nav-scroll">
@@ -44,17 +44,17 @@
 
     <li class="nav-item">
       <a class="nav-link p-2" href="{{ site.repo }}" target="_blank" rel="noopener" aria-label="GitHub">
-        {% include icons/github.svg class="navbar-nav-svg" %}
+        {%- include icons/github.svg class="navbar-nav-svg" -%}
       </a>
     </li>
     <li class="nav-item">
       <a class="nav-link p-2" href="https://twitter.com/{{ site.twitter }}" target="_blank" rel="noopener" aria-label="Twitter">
-        {% include icons/twitter.svg class="navbar-nav-svg" %}
+        {%- include icons/twitter.svg class="navbar-nav-svg" -%}
       </a>
     </li>
     <li class="nav-item">
       <a class="nav-link p-2" href="{{ site.slack }}" target="_blank" rel="noopener" aria-label="Slack">
-        {% include icons/slack.svg class="navbar-nav-svg" %}
+        {%- include icons/slack.svg class="navbar-nav-svg" -%}
       </a>
     </li>
   </ul>

_includes/docs-sidebar.html

 <form class="bd-search d-flex align-items-center">
   <input type="search" class="form-control" id="search-input" placeholder="Search..." aria-label="Search for..." autocomplete="off">
   <button class="btn btn-link bd-search-docs-toggle d-md-none p-0 ml-3" type="button" data-toggle="collapse" data-target="#bd-docs-nav" aria-controls="bd-docs-nav" aria-expanded="false" aria-label="Toggle docs navigation">
-    {% include icons/menu.svg width="30" height="30" %}
+    {%- include icons/menu.svg width="30" height="30" -%}
   </button>
 </form>