README.md: Correct minor typographical and grammatical errors

[RicoAntonioFelix]

No description provided.

[coveralls]

Coverage remained the same at 100.0% when pulling bef984d on RicoAntonioFelix:master into e82d1ae on ainfosec:master.

[codecov-io]

Codecov Report

Merging #2 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master     #2   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           6      6           
  Lines          27     27           
=====================================
  Hits           27     27

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