[pitivi] docs: Update hotdoc theme

[Thibault Saunier <tsaunier src gnome org>]

commit b1987fd94e1189d6d6525acd0fe040f458e45196
Author: Thibault Saunier <tsaunier gnome org>
Date:   Thu Dec 14 21:26:02 2017 -0300

    docs: Update hotdoc theme

 docs/hotdoc.json |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/hotdoc.json b/docs/hotdoc.json
index 5c56112..911ffd3 100644
--- a/docs/hotdoc.json
+++ b/docs/hotdoc.json
@@ -9,7 +9,7 @@
     "syntax_highlighting_activate": true,
     "html_extra_theme": "extra",
     "git_upload_repository": "git github com:pitivi/pitivi.github.io.git",
-    "html_theme": 
"https://github.com/thiblahute/hotdoc-gnome-theme/releases/download/0.3/hotdoc-gnome-theme-0.3.tar.xz?sha256=84675ba05a11a3807a388ead1bda695c87a5eb2d858770562e9d3a1cce02f35e";,
+    "html_theme": 
"https://github.com/hotdoc/hotdoc_lumen_theme/releases/download/0.3/hotdoc_lumen_theme-0.3.tar.xz?sha256=c5ff56817dfaf19f8e32078da12edf6f0cc04b9369fb049f19365bc108cf5229";,
     "edit_on_github_repository": "https://github.com/pitivi/pitivi";,
     "edit_on_github_branch": "master"
 }