Link to templates plugin is broken

[Nublo]

Documentation on the templates

Proposes to download MVICoreFileTemplates.jar from https://github.com/badoo/MVICore/blob/master/plugin/MVICoreFileTemplates.jar?raw=true.

I can see that templates plugin can be found here:
https://github.com/badoo/MVICore/blob/master/plugins/MVICoreFileTemplates.jar

We need to update link