Add Tempo to gui list

Author: maoyama

data/guis/tempo.yml

@@ -0,0 +1,11 @@
+---
+name: "Tempo"
+project_url: "https://github.com/maoyama/Tempo"
+image_tag: "images/guis/[email protected]"
+platforms:
+  - "Mac"
+price: "Free"
+license: "MIT"
+trend_name: "tempo"
+order: 60
+---