Update Docs Links for Conract Events

[adasauce]

Just some broken links I found in the SDK docs as I was reading through.

[davidyuk]

thank you!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (3b7853c) to head (4592d86).
Report is 13 commits behind head on develop.

Additional details and impacted files

@@       Coverage Diff       @@
##   develop   #2061   +/-   ##
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