fix: GraphQLAPI.setSchemaConfig README example

[themgt]

No description provided.

[codecov]

Codecov Report

Merging #1726 (0100a62) into main (a568af3) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1726   +/-   ##
=======================================
  Coverage   66.77%   66.77%           
=======================================
  Files          87       87           
  Lines        4873     4873           
  Branches     1343     1343           
=======================================
  Hits         3254     3254           
  Misses       1383     1383           
  Partials      236      236           

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[acao]

ty!