encourage expression of what interface the semantic versioning covers

[altendky]

Mention whether you follow Semantic Versioning and what interfaces it covers.

#536

[altendky]

I think this is what was encouraged over in #536, though I have not worked with Haml before. I kind of wanted to use a few more words, but this was the only reference to semantic versioning so I kept it brief for the list.

[olivierlacan]

@altendky I've added this to the 2.0.0 project because I don't want to add a new section before 2.0.0 given we have 28 translations to consider.

I also don't want to focus exclusively on SemVer in this project, do you think this FAQ section would make sense if it doesn't focus exclusively on one versioning scheme?

[altendky]

Sure. Whatever scheme you use I think the same questions exist, unless the scheme already lays it out explicitly for you.