DOC: Add note about OS support
DOC: Add note about OS support

ww880412/lda,hothHowler/lda,ariddell/lda-debian,hothHowler/lda,ariddell/lda-debian,ww880412/lda,tdhopper/lda-1,hothHowler/lda,tdhopper/lda-1,ww880412/lda,ariddell/lda,ariddell/lda,tdhopper/lda-1,ariddell/lda-debian,ariddell/lda