Update comment style for modules function.nf

[JoseEspinosa]

The style of the comments has been updated on the rnaseq and the viralrecon DSL2 pipelines after adding the EditorConfig Actions see here and here, respectively. On this way all the .{nf,groovy,conf} files have the comment style shown below:

//
// My awesome comment here
//

To make all the comments consistent, the template used to create the modules should be also updated to use the commenting style above on the functions.nf file.

[KevinMenden]

closing as has been fixed