Add a note on having proper system installation in Level 1

[reenas]

No description provided.

[yash-learner]

Would like to add some points :

• Add a note that while using wsl not to mount the windows file system to wsl and not store work files in windows file system and not to run the program by mounting windows files system to wsl because sometimes it can lead to weird issues. Ask students to keep all the work files under wsl /home/user_folder_name => /home/yaswanth/ as folders not in windows file system /mnt/c

• Add a note about about why it is recommend and good to use *nix like OS for development.