Add tags to existing posts

The theme still doesn't use tags yet, but it's good to define the
metadata anyways.

content/post/no-noise-near-noisy-mosque.md

@@ -4,6 +4,7 @@ title = "No Noise Near the Noisy Mosque"
 slug = "no-noise-near-noisy-mosque"
 author = "Alan Orth"
 description = "Ironic double standard for noise pollution from our local mosque in Amman."
+tags = ["Mosque", "Noise"]
 +++
 
 {{< figure src="/2016/09/no-noise-near-mosque.jpg" title="Sign forbidding sound near mosque on Rainbow Street, Amman" >}}