I think it might be worth throwing in just a little bit more stating the distinction.  E.g.:
```
The first is using a |Table| object *method*, which combines the object it is called from with other `Table`s.  The second
+is using a *function* within the `~astropy.table` sub-package, which stacks all of the tables it is called on.  For example::
```
I say this (or some similar wording) just because I suspect some people reading this won't really know what the word "method" means relative to "function".  Tables are a relatively "accessible" concept, so I think somewhat more novices would come through here than some of the other subpackages.