Initial installation problem

[KimSummers]

Command
git submodule foreach git pull origin master
from the ReadMe file instructions
gave an error "CONFLICT (add/add): Merge conflict in README.md
Automatic merge failed; fix conflicts and then commit the result.
Stopping at 'SPAdes'; script returned non-zero status."

  Alternative command 
        `git pull --recurse-submodules`
        works fine