[manfred2HTML] Implement mapper from md to html

[juanpms2]

Steps:

• Install markdown-it library about dependencies on manfred2HTML package: npm install markdown-it

• https://github.com/markdown-it/markdown-it

• Create a function into the mappers:

  import markdownIt from 'markdown-it';
  
  export const mapMarkdownToHTML = (md: string): string => { ... };

• markdown-it configuration is:

  {
  html: true,
  breaks: true,
  xhtmlOut: true,
  linkify: false,
  typographer: false,
  }

• Use this function on the section to check it is run well.