Added English Tutorial for LOJ-1397: Sudoku Solver#400

Merged

rebornplusplus merged 4 commits intolightoj-dev:mainfrom

mirzaazwad:patch-1

Feb 4, 2023

Commits on Oct 10, 2022

Create 1397
mirzaazwad
authored

Commits on Oct 11, 2022

Commits on Feb 4, 2023

Fixed minor details that the authors didn't address
rebornplusplus
committed