fix(doc): replaced link for monaco editor options

[bozzelliandrea]

PR Checklist

Please check if your PR fulfills the following requirements:

• [X] The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• [X] Tests for the changes have been added (for bug fixes / features)
• [X] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[X] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

monaco link was wrong Issue Number: N/A

What is the new behavior?

replaced with right link to monaco api docs

Does this PR introduce a breaking change?

[ ] Yes
[X] No

Other information

[zorro-bot[bot]]

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (f6c02ec) 91.74% compared to head (a702d98) 91.74%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8393   +/-   ##
=======================================
  Coverage   91.74%   91.74%           
=======================================
  Files         520      520           
  Lines       18023    18023           
  Branches     2838     2838           
=======================================
  Hits        16536    16536           
  Misses       1184     1184           
  Partials      303      303           

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