updated README to document 1.2.7
updated README to document 1.2.7

AleksandrChukhray/CLNDR,ykshao/CLNDR,Klaudit/CLNDR,masterweb121/CLNDR,WangRex/CLNDR,kapke/CLNDR,masterweb121/CLNDR,MadAnd/CLNDR,AleksandrChukhray/CLNDR,WangRex/CLNDR,kylestetz/CLNDR,Klaudit/CLNDR,kapke/CLNDR,ykshao/CLNDR,kylestetz/CLNDR,joubertredrat/CLNDR,MadAnd/CLNDR,joubertredrat/CLNDR