Add links to viu that supports the graphics protocol

docs/graphics-protocol.rst

@@ -37,6 +37,7 @@ Some programs that use the kitty graphics protocol:
  * `pixcat <https://github.com/mirukana/pixcat>`_ - a third party CLI and python library that wraps the graphics protocol
  * `neofetch <https://github.com/dylanaraps/neofetch>`_ - A command line system
    information tool
+ * `viu <https://github.com/atanunq/viu>`_ - a terminal image viewer
 
 
 .. contents::

docs/integrations.rst

@@ -30,6 +30,10 @@ images and other types of documents directly in your terminal, even over SSH.
 `koneko <https://github.com/twenty5151/koneko>`_
     browse images from the pixiv artist community directly in kitty
 
+`viu <https://github.com/atanunq/viu>`_
+    view images in the terminal, similar to kitty's icat, however also supports
+    displaying animated GIFs
+
 
 System and data visualisation tools
 ---------------------------------------