docs: Document that we will not do buildpack support in the issue tracker
docs: Document that we will not do buildpack support in the issue tracker

[ci skip]
dokku/dokku,elia/dokku,elia/dokku,jimjag/dokku,claytonbrown/dokku,fruitl00p/dokku,jimjag/dokku,alexquick/dokku,claytonbrown/dokku,elia/dokku,alexquick/dokku,jimjag/dokku,progrium/dokku,progrium/dokku,dokku/dokku,progrium/dokku,fruitl00p/dokku,jimjag/dokku,claytonbrown/dokku,elia/dokku,elia/dokku,fruitl00p/dokku,dokku/dokku,alexquick/dokku,dokku/dokku,alexquick/dokku,dokku/dokku,progrium/dokku,dokku/dokku,elia/dokku,fruitl00p/dokku,elia/dokku,alexquick/dokku,fruitl00p/dokku,fruitl00p/dokku,dokku/dokku,jimjag/dokku,claytonbrown/dokku,progrium/dokku,progrium/dokku,elia/dokku,alexquick/dokku,fruitl00p/dokku,jimjag/dokku,claytonbrown/dokku,alexquick/dokku,claytonbrown/dokku,claytonbrown/dokku,progrium/dokku,jimjag/dokku,claytonbrown/dokku,dokku/dokku,progrium/dokku,jimjag/dokku,alexquick/dokku,fruitl00p/dokku