Feature file written

First draft of feature file complete.
Steps not implemented

Signed-off-by: Ippoippo <ippoippo_software@ippoippo.net>
Signed-off-by: Ippoippo <ippoippo-software@ippoippo-eco.com>
Fix markdown in README

Signed-off-by: Ippoippo <ippoippo-software@ippoippo-eco.com>
Merge branch 'refs/heads/issue0002_Implement_Sign_In___write_feature_file' into issue0002_Implement_Sign_In