Import the feed icon from wikipedia.

LICENSE.md

@@ -18,6 +18,7 @@ In addition, this repository contains imported versions of several external proj
 - The [InstantClick][4] JavaScript library in the directory `static/js`.
 - The [highlight.js][5] JavaScript source code highlighting library in the directory `static/js`.
 - An imported version of the Hugo template as used by the [Hugo website](https://gohugo.io) in the directories `layouts/partials` and `static/{assets/font,css,fonts,js}`, which has been heavily modified and extended for this website.
+- The [feed icon][10] for linking to rss feeds in `static/img/Feed-icon.svg` .
 
 
 License
@@ -42,3 +43,4 @@ Links
 [7]: UNLICENSE
 [8]: APACHE-2.0
 [9]: content/about/legal.md
+[10]: https://commons.wikimedia.org/wiki/File:Feed-icon.svg

content/about/legal.md

@@ -63,7 +63,15 @@ This website uses a number of external projects:
 - The [highlight.js](https://highlightjs.org) JavaScript source code highlighting library, distributed under the [BSD License](https://github.com/isagalaev/highlight.js/blob/master/LICENSE).
 - API documentation generated using [Doxygen](http://doxygen.org).
 - Build system documentation generated using [Sphinx](http://www.sphinx-dox.org).
-
+- The [Feed Icon](https://commons.wikimedia.org/wiki/File:Feed-icon.svg) is
+  distributed under the
+  [Mozilla Public License Version 1.1](https://www.mozilla.org/en-US/MPL/1.1/),
+  the
+  [GNU General Public License version 2](https://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
+  or [later](https://www.gnu.org/copyleft/gpl-3.0.html),
+  and the
+  [GNU Lesser General Public License version 2.1](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html)
+  or [later](https://www.gnu.org/licenses/lgpl.html).
 
 ## Contact us