Update installation instructions for Go 1.17 onwards

[jlyonsmith]

I'm new to Go and this had me confused for a spell. Hopefully this comment makes the situation clear for others that the default behavior of go get has change and no longer installs executables in the GOBIN directory.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.0%. Comparing base (5a3d358) to head (2c15465).
Report is 1 commits behind head on main.

❌ Your project status has failed because the head coverage (0.0%) is below the target coverage (60.0%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@         Coverage Diff         @@
##           main    #13   +/-   ##
===================================
  Coverage   0.0%   0.0%           
===================================
  Files        52     52           
  Lines      4550   4550           
===================================
  Misses     4550   4550           

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[maruel]

Thanks!