Text was wrongly highlighted in bash syntax

[MapleCCC]

• Please check if the Pull Request fulfills these requirements

  • The commit message follows our guidelines

• What kind of change does this Pull Request introduce? (Bug fix, feature, docs update, ...)

  Small docs update.

• What is the current behavior? (You can also link to an open issue here)

  The text of command line usage is improperly highlighted in bash syntax.

• What is the new behavior (if this is a feature change)?

  The text of command line usage is no longer improperly highlighted in bash syntax.

• Does this Pull Request introduce a breaking change? (What changes might users need to make in their application due to this PR?)

  No.

[codecov]

Codecov Report

Merging #23 (539ae3d) into master (bf391f0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #23   +/-   ##
=======================================
  Coverage   99.46%   99.46%           
=======================================
  Files           4        4           
  Lines         188      188           
  Branches       30       30           
=======================================
  Hits          187      187           
  Partials        1        1           

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