* Create pi-actuator.hi.md
* Replaced रात की रोशनी with रात का चिराग़
* Update pi-actuator.hi.md
* Create pi-sensor.hi.md
* Rename 1-getting-started/lessons/3-sensors-and-actuators/pi-sensor.hi.md to 1-getting-started/lessons/3-sensors-and-actuators/translations/pi-sensor.hi.md
Co-authored-by: Jim Bennett <jim.bennett@microsoft.com>