Update INSTALL.md
Update INSTALL.md

New mono version works fine
msprotz/FStar,msprotz/FStar,FStarLang/FStar,MallabaevAzamat/FStar,FStarLang/FStar,A-Manning/FStar,aa755/FStar,A-Manning/FStar,MallabaevAzamat/FStar,msprotz/FStar,aa755/FStar,FStarLang/FStar,aa755/FStar,YaccConstructor/FStar,MallabaevAzamat/FStar,YaccConstructor/FStar,hoheinzollern/FStar,hoheinzollern/FStar,MallabaevAzamat/FStar,YaccConstructor/FStar,msprotz/FStar,A-Manning/FStar,YaccConstructor/FStar,aa755/FStar,hoheinzollern/FStar,hoheinzollern/FStar