Update Getting Started guide

[ferigis]

In "Fetching all entries" section we are using Blog.Cache.all/0,1 which it doesn't exist anymore.
Replace it by to_map function

[loongmxbt]

May I ask why replace all() to to_map()?

[cabol]

@loongmxbt the reason is all function doesn't exists any more, instead the to_map function was created to retrieve all cached entries, because sometimes you might want not only the values but also the keys, and I though the best way to return the cached entries was using a map, you have both, keys and values, and is you want the Nebulex.Object as value, you can pass the option return: :object.

However, if you have any suggestion, possible enhancement, please let us know :)

Stay tuned!