A newline is needed at the end of this file

If that newline is not present, in macosx + nodejs@v12.15.0 it will mix the name of a function with its own description, so

```
@function someFunct
@description someDescription
...
```
will end up like `someFunct(param1, param2) => someReturn someDescription`

The newline helps mitigating that problem (the arrow still will be shown in the leftbar menu).

Anyway, is always a good practice to add a newline on everyfile.

template/header.hbs

@@ -1,3 +1,3 @@
 <a name="{{{anchorName}}}"></a>
 
-{{>heading-indent}}{{>sig-name}}
+{{>heading-indent}}{{>sig-name}}