fix https://git.vvvvvvaria.org/rra/lumbung-theme/issues/4

index_template.md

@@ -8,7 +8,7 @@ video_channel: "{{ v.channel.display_name }}"
 channel_url: "{{ v.channel.url }}"
 preview_image: "{{ preview_image }}"
 categories: ["tv","{{ v.channel.display_name }}"]
-is_live: ["{{ v.is_live }}"]
+is_live: {{ v.is_live }}
 
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