Fix Error with missing files in chapter 2.1

[yoavrotems]

Fix issue #72

[codecov]

Codecov Report

Merging #77 (646b83d) into main (0f355c0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #77   +/-   ##
=======================================
  Coverage   20.93%   20.93%           
=======================================
  Files           4        4           
  Lines         172      172           
=======================================
  Hits           36       36           
  Misses        133      133           
  Partials        3        3           

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