resolved all lint errors, fixed the manual lint rules, and improved documentation

[sio4]

No description provided.

[codecov]

Codecov Report

Merging #7 (c7d665d) into main (520a801) will increase coverage by 0.86%.
The diff coverage is 82.50%.

@@            Coverage Diff             @@
##             main       #7      +/-   ##
==========================================
+ Coverage   71.71%   72.58%   +0.86%     
==========================================
  Files          17       17              
  Lines         693      704      +11     
==========================================
+ Hits          497      511      +14     
+ Misses        183      182       -1     
+ Partials       13       11       -2     

Impacted Files	Coverage Δ
exporters/stackdriver.go	4.27% <0.00%> (-0.04%)	⬇️
internal/common/options.go	100.00% <ø> (ø)
cmd/bogo/main.go	36.08% <40.00%> (+0.59%)	⬆️
checks/ping.go	84.33% <50.00%> (-1.03%)	⬇️
meari/server.go	88.88% <50.00%> (+15.20%)	⬆️
exporters/exporters.go	84.00% <75.00%> (+1.39%)	⬆️
checks/checks.go	100.00% <100.00%> (ø)
checks/heartbeat.go	100.00% <100.00%> (ø)
exporters/stdout.go	100.00% <100.00%> (ø)
handlers/echo.go	100.00% <100.00%> (ø)
... and 10 more

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