Update build-instructions.md
Update build-instructions.md

url clone fixation
marat-gainullin/platypus-js,altsoft/PlatypusJS,altsoft/PlatypusJS,marat-gainullin/PlatypusJS,marat-gainullin/PlatypusJS,jskonst/PlatypusJS,marat-gainullin/PlatypusJS,jskonst/PlatypusJS,altsoft/PlatypusJS,marat-gainullin/platypus-js,jskonst/PlatypusJS,jskonst/PlatypusJS,marat-gainullin/platypus-js