Fix: Links to documentation

[localheinz]

This pull request

• fixes the links to the JSON schema documentation

[codecov]

Codecov Report

Merging #633 (ef8da57) into main (0214800) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #633   +/-   ##
=========================================
  Coverage     99.05%   99.05%           
  Complexity      151      151           
=========================================
  Files            32       32           
  Lines           527      527           
=========================================
  Hits            522      522           
  Misses            5        5           

Impacted Files	Coverage Δ
src/SchemaNormalizer.php	95.93% <ø> (ø)

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