[Docs] Fix typo shedule

[Dai-Wenxun]

Modification

change shedule to schedule.

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (main@5753cd9). Click here to learn what that means.
Patch has no changes to coverable lines.

❗ Current head b7fe801 differs from pull request most recent head 3798a62. Consider uploading reports for the commit 3798a62 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #936   +/-   ##
=======================================
  Coverage        ?   77.92%           
=======================================
  Files           ?      133           
  Lines           ?    10097           
  Branches        ?     2011           
=======================================
  Hits            ?     7868           
  Misses          ?     1888           
  Partials        ?      341           

Flag	Coverage Δ
unittests	77.92% <0.00%> (?)

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