'In the spec directory for this lab, there are 2 files, spec_helper.rb, which does not match the pattern of ending with a _spec.rb, and fizzbuzz_spec.rb, which does.'
maybe replacing the second comma with a colon or dash would help make it easier to read:
"In the spec directory for this lab, there are 2 files: spec_helper.rb, which does not match the pattern of ending with a _spec.rb, and fizzbuzz_spec.rb, which does."
'In the spec directory for this lab, there are 2 files, spec_helper.rb, which does not match the pattern of ending with a _spec.rb, and fizzbuzz_spec.rb, which does.'
maybe replacing the second comma with a colon or dash would help make it easier to read:
"In the spec directory for this lab, there are 2 files: spec_helper.rb, which does not match the pattern of ending with a _spec.rb, and fizzbuzz_spec.rb, which does."