ATtiny programming using arduino UNO

 circuit diagram

ATtiny13A pin1 -> Arduino pin 10

ATtiny13A pin5 -> Arduino pin 11

ATtiny13A pin6 -> Arduino pin 12

ATtiny13A pin7 -> Arduino pin 13

ATtiny13A pin 8 -> 5v

ATtiny13A pin4 -> Ground

board URL

 Open Arduino IDE -> File -> Preferences

https://mcudude.github.io/MicroCore/package_MCUdude_MicroCore_index.json