Fix broken headings in Markdown files

[bryant1410]

GitHub changed the way Markdown headings are parsed, so this change fixes it.

See bryant1410/readmesfix for more information.

Tackles bryant1410/readmesfix#1

[codecov[bot]]

Codecov Report

Merging #170 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #170   +/-   ##
=======================================
  Coverage   80.94%   80.94%           
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  Files         134      134           
  Lines        6711     6711           
  Branches      334      334           
=======================================
  Hits         5432     5432           
  Misses       1099     1099           
  Partials      180      180

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[3Hren]

Seems to be false-positive. These - are not markdown headings, but c++ includes in examples.

[bryant1410]

Seems to be false-positive. These - are not markdown headings, but c++ includes in examples.

Sorry and thanks for the feedback. Gonna fix it