#19: README.md, add 'SD Card' subsection
#19: README.md, minor language change
#19: README.md, minor language changes
#19: README.md, minor language changes
#19: README.md, minor language changes
#19: README.md, link text
#19: README.md, include steps to install Raspbian on SC Card
#19: README.md, add 'Note(s)'
#19: README.md, minor syntax change
#19: README.md, link text
#19: README.md, minor language changes
#19: README.md, remove 'temporary directory'
#19: README.md, link text
#19: README.md, minor language change
#19: README.md, link text
#19: README.md, fix typo
#19: README.md, link text
#19: README.md, link text
Merge pull request #27 from jeff1evesque/doc_sd_card

#19: README.md, add 'SD Card' subsection