Rockstor 5 is missing in the Installation #564
Description
in installation/quickstart.rst the ToC looks like this:
Installation
[Rockstor 4](https://rockstor.com/docs/installation/quickstart.html#rockstor-4)
[Rockstor 3](https://rockstor.com/docs/installation/quickstart.html#rockstor-3)
might be confusing for the newbies, if the latest version is not mentioned here. Or at least change it to "Rockstor 4+"?