doc(nested_reactive): add Vue3 only feature

[finetjul]

No description provided.

[jourdain]

Already here

[finetjul]

Then why is the example in the Vue2 folder ?

I thought that this comment meant that the "old fashion" solution was working with Vue2.

[jourdain]

So DeepReactive does not work in vue2, but we do provide a workaround for achieving it, in the old fashion way.

DeepReactive could have worked with vue2, but implementation details make it not easy to do. But I think we could build our vue3 client using the latest vue2 library and that will allow it to work and have the exact same API as vue3. So we could have 3 client_type:

• vue2 => The way it started
• vue3 => the modern way with some small api/feature change
• vue23 => same api as vue3 but for vue2. (deepreactive working and more...)