Added meeting scheduler low level design (#4)

Update README.md

Update README.md

Update README.md

Update README.md

implement facade pattern

Add social media platform design

Update README.md

add vending machine design

Update README.md

Update README.md

Add library management system

Update README.md

Add elevator operations

Add elevator operation functions

merge main

Update README.md

Delete parking_lot/.idea directory

Delete parking_lot/.DS_Store

Add .gitignore and exclude .DS_Store and .idea

initial commit- add parking lot system design

initial commit- add parking lot system design

Initial commit