fix: errors and typos in docs

[Anon-im]

This PR implements issue(s) #

Checklist

• I wrote new tests for my new core changes.
• I have successfully ran tests, style checker and build against my new changes locally.
• I have informed the team of any breaking changes if there are any.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.22%. Comparing base (3805acb) to head (f4969d7).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #486   +/-   ##
=========================================
  Coverage     68.22%   68.22%           
  Complexity     1128     1128           
=========================================
  Files           319      319           
  Lines         12795    12795           
  Branches       1277     1277           
=========================================
+ Hits           8729     8730    +1     
  Misses         3540     3540           
+ Partials        526      525    -1     

Flag	Coverage Δ
hardhat	98.70% <ø> (ø)
kotlin	65.85% <ø> (+<0.01%)	⬆️

see 1 file with indirect coverage changes

[cla-assistant]

All committers have signed the CLA.

[Anon-im]

@jpnovais signed CLA