Duplicate install instructions in README.md?

[vmiheer]

Seems like the installation instructions are duplicated in https://lift-project.readthedocs.io/en/latest/getting-started/index.html? I guess the later (https://lift-project.readthedocs.io/en/latest/getting-started/index.html) is much more thorough and importantly it gives quicker instructions using docker. I propose removing the instructions in README.md and instead just pointing to https://lift-project.readthedocs.io/en/latest/getting-started/index.html. Otherwise, it is missing step 6 onwards in this section.