Fixed typos

[keuhdall]

Fixed a few typos in docs & README's

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@135d32e). Click here to learn what that means.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##             master      #40   +/-   ##
=========================================
  Coverage          ?   31.26%           
=========================================
  Files             ?       17           
  Lines             ?     2175           
  Branches          ?        0           
=========================================
  Hits              ?      680           
  Misses            ?     1449           
  Partials          ?       46           

Impacted Files	Coverage Δ
cmd/butler/main.go	8.99% <0.00%> (ø)

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