Update manual.html (#156)

Author: aglitchman

_layouts/manual.html

@@ -69,7 +69,9 @@
 			<div class="columns eight manual">
 				{%- if page.language != "en" -%}
 				{%- capture urlprefix -%}/{{ language.urlprefix }}/{%- endcapture -%}
-				<p><a href="{{ page.url | replace: urlprefix, "/" }}">Read this manual in English</a></p>
+				<div class="sidenote">
+					<p>This translation is community contributed and may not be up to date. We only maintain the English version of the documentation. <a href="{{ page.url | replace: urlprefix, "/" }}">Read this manual in English</a></p>
+				</div>
 				{%- endif -%}
 				{% include anchor_headings.html html=content anchorClass="anchor-link" %}
 			</div>