add myself to the Directory of Students
Merge pull request #255 from luizlopezm/cs100-2014fall

enrolling in cs100
updated README.md: changed wording of question, "you can...?" to "can you...?"
Merge pull request #275 from jstod001/cs100-2014fall

updated README.md
Fixed typo
Merge pull request #289 from lpeng003/cs100-2014fall

Fixed typo
Merge remote-tracking branch 'upstream/cs100-2014fall' into cs100-2014fall