Replacing hasSidebar instead of sidebar in Cookbox

[frontend-3]

While I was checking out the new cookbook(btw this new version is amazing) I realized that https://github.com/styleguidist/react-styleguidist/blob/master/docs/Cookbook.md#how-to-change-the-layout-of-a-style-guide is using sidebar prop instead hasSidebar. I'm fixing that because I feel is confusing have a example with the wrong prop. So:

Before

// lib/styleguide/StyleGuideRenderer.js
import React from 'react';
const StyleGuideRenderer = ({ title, homepageUrl, components, toc, sidebar }) => (
  <div className="root">
    <h1>{title}</h1>
    <main className="wrapper">
      <div className="content">
        {components}
        <footer className="footer">
          <Markdown text={`Generated with [React Styleguidist](${homepageUrl})`} />
        </footer>
      </div>
      {sidebar &&
        <div className="sidebar">
          {toc}
        </div>
      }
    </main>
  </div>
);

Now:

// lib/styleguide/StyleGuideRenderer.js
import React from 'react';
const StyleGuideRenderer = ({ title, homepageUrl, components, toc, hasSidebar }) => (
  <div className="root">
    <h1>{title}</h1>
    <main className="wrapper">
      <div className="content">
        {components}
        <footer className="footer">
          <Markdown text={`Generated with [React Styleguidist](${homepageUrl})`} />
        </footer>
      </div>
      {hasSidebar &&
        <div className="sidebar">
          {toc}
        </div>
      }
    </main>
  </div>
);

[codecov-io]

Codecov Report

Merging #369 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #369   +/-   ##
=======================================
  Coverage   94.12%   94.12%           
=======================================
  Files          74       74           
  Lines        1038     1038           
  Branches      220      220           
=======================================
  Hits          977      977           
  Misses         61       61

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[sapegin]

Cool, thanks!