Update quick-start.md

[nikita-fuchs]

add reference to the actual installation document for easier navigation, not sure about the correctness of the link(format).

refers to #1893 (comment)

closes #1893

[codecov]

Codecov Report

Patch coverage: 50.00% and no project coverage change.

Comparison is base (dec62a4) 81.37% compared to head (ca7d7e8) 81.37%.
Report is 12 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1895   +/-   ##
========================================
  Coverage    81.37%   81.37%           
========================================
  Files           94       94           
  Lines         3361     3361           
  Branches       671      671           
========================================
  Hits          2735     2735           
  Misses         303      303           
  Partials       323      323           

Files Changed	Coverage Δ
src/tx/builder/field-types/fee.ts	95.55% <0.00%> (ø)
src/tx/builder/field-types/gas-price.ts	77.77% <0.00%> (ø)
src/utils/crypto.ts	95.74% <ø> (ø)
src/contract/Contract.ts	75.28% <100.00%> (ø)
src/utils/autorest.ts	90.66% <100.00%> (ø)

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