added instructions for WSL + table of contents

[nadiaenh]

Added step-by-step instructions on how to install and setup WSL and VSCode to work on this project.

[codecov-commenter]

Codecov Report

Merging #283 (10e7fb8) into main (7d24325) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##              main      #283   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           12        12           
  Lines          187       187           
=========================================
  Hits           187       187           

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[nadiaenh]

To-do before merging :

• [x] add "if you are using Linux/mac, skip steps XYZ"
• [ ] add link to @smishr 's video recording

[ayushpatnaikgit]

To-do before merging :

* [ ]  add "if you are using Linux/mac, skip steps XYZ"

* [ ]  add link to @smishr 's video recording

Don't add the link, I look too silly in the video :P We'll make a new one with audio.

[smishr]

i am merging this now