DOC: mention of future version in install.md
DOC: mention of future version in install.md

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