docs: remove contributing link

[DanielRuf]

Type:
docs

The following has been addressed in the PR:

Description:
This PR removes the dead link to CONTRIBUTING.md.

[priscilawebdev]

@DanielRuf good catch!! thank you!!

[codecov-io]

Codecov Report

Merging #146 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #146   +/-   ##
=======================================
  Coverage   84.12%   84.12%           
=======================================
  Files          92       92           
  Lines         926      926           
  Branches      166      151   -15     
=======================================
  Hits          779      779           
- Misses        128      132    +4     
+ Partials       19       15    -4

Impacted Files	Coverage Δ
src/components/Header/Header.tsx	89.47% <0%> (ø)	⬆️
src/components/Install/Install.tsx	83.33% <0%> (ø)	⬆️
src/components/DetailSidebar/DetailSidebar.tsx	89.47% <0%> (ø)	⬆️
...mponents/RegistryInfoDialog/RegistryInfoDialog.tsx	66.66% <0%> (ø)	⬆️

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