chore: fix multiple typos in comments

[tobyxdd]

No description provided.

[codecov]

Codecov Report

Base: 85.48% // Head: 85.48% // No change to project coverage 👍

Coverage data is based on head (3572da5) compared to base (df762b7).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3612   +/-   ##
=======================================
  Coverage   85.48%   85.48%           
=======================================
  Files         141      141           
  Lines       10296    10296           
=======================================
  Hits         8801     8801           
  Misses       1109     1109           
  Partials      386      386           

Impacted Files	Coverage Δ
connection.go	76.42% <ø> (ø)
internal/flowcontrol/base_flow_controller.go	100.00% <ø> (ø)
send_stream.go	93.31% <ø> (ø)

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[marten-seemann]

Thank you! Suggested a few little changes.

[marten-seemann]

Thank you!