I would suggest re-naming this to something like `mapcube_coalign_by_template` or `mapcube_coalign_by_match_template`.

We could by convention do
```Python
from sunpy.image.coalignment import mapcube_coalign_by_template as mc_align
```

or, thinking about it, seeing as this is in a module called 'coalignment' we could call this function `mapcube_by_template` or `mapcube_template`?? Ideas for better naming welcome!