Minor docs cleanup
Not all terminals are accessed via SSH.
JSON is great... for computers. Even if it's pretty-printed, trying
to find relationships in the data is tedious. Human eyes, especially
-when looking at an ssh terminal, need compact and aligned text. The
-cat API aims to meet this need.
+when looking at a terminal, need compact and aligned text. The cat API
+aims to meet this need.
All the cat commands accept a query string parameter `help` to see all
the headers and info they provide, and the `/_cat` command alone lists all
