DOC: Add README.md to doc/
DOC: Add README.md to doc/

ElDeveloper/qiita,antgonza/qiita,josenavas/QiiTa,adamrp/qiita,squirrelo/qiita,antgonza/qiita,josenavas/QiiTa,antgonza/qiita,josenavas/QiiTa,antgonza/qiita,squirrelo/qiita,biocore/qiita,adamrp/qiita,adamrp/qiita,ElDeveloper/qiita,squirrelo/qiita,josenavas/QiiTa,biocore/qiita,biocore/qiita,adamrp/qiita,ElDeveloper/qiita,biocore/qiita,ElDeveloper/qiita,squirrelo/qiita