[tracker/wip/carlosg/test] docs: Use lumen theme for documentation

[Carlos Garnacho <carlosg src gnome org>]

commit 3937f07180faba4b6abfd2f49cdbaa5738ae5b9e
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Aug 29 21:44:09 2021 +0200

    docs: Use lumen theme for documentation
    
    Do as instructed in their readme and use the tarball URL directly.
    Not great since it requires network access, but seems failable
    (using the default theme otherwise), so let's go with that.

 docs/reference/libtracker-sparql/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/docs/reference/libtracker-sparql/meson.build b/docs/reference/libtracker-sparql/meson.build
index 1feaaba23..683c66f58 100644
--- a/docs/reference/libtracker-sparql/meson.build
+++ b/docs/reference/libtracker-sparql/meson.build
@@ -76,6 +76,7 @@ hotdoc.generate_doc(docs_name,
   gi_c_source_roots: [sparqlinc],
   dependencies: [tracker_sparql_dep, base_ontology_docs, nepomuk_ontology_docs],
   extra_assets: [join_paths(meson.current_source_dir(), 'images')],
+  html_theme: 
'https://github.com/hotdoc/hotdoc_lumen_theme/releases/download/0.13.2/hotdoc_lumen_theme-0.13.2.tar.xz?sha256=5721189b7e985f27381ee20137f4a9003049a70a75ab1221a69fd04d27e752bc',
   html_extra_theme: join_paths(meson.current_source_dir(), 'theme-extra'),
   syntax_highlighting_activate: true,
   devhelp_activate: true,