Add Screenshots

[atarax665]

Add screenshot of the output in the respective folder.

• Screenshots should be added in new folder name Screenshots
  e.g : 1st Year/01. Basic Calculator/Screenshots
• Add separate screenshot of all the different possible outputs.

Note - Screenshot should be of output of program written in C.

[VickyGuo0907]

@atarax665 is this kind of screenshot you need? are you going to create the img folder under each code folder? like 02. Root of a quadratic equation/img? I could start to upload screenshot then. Let me know what's your thoughts on this

[atarax665]

@VickyGuo0907 Even this looks fine, but I'll recommend to add different screenshots for different cases. Add the screenshots in 02. Root of a quadratic equation/Screenshots.