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Added Node.js documentation +Doc Improvements

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Adding Node.js documentation link for beginners, fix grammatical error, spacing and highlighting some keywords.
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shubhneet182 2019-10-01 23:36:13 +05:30 committed by GitHub
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<h2>API Project: URL Shortener Microservice</h2>
<h3>User Story: </h3>
<ol>
<li>I can POST a URL to <code>[project_url]/api/shorturl/new</code> and I will receive a shortened URL in the JSON response.<br>Example : <code>{"original_url":"www.google.com","short_url":1}</code></li>
<li>If I pass an invalid URL that doesn't follow the <code>http(s)://www.example.com(/more/routes)</code> format, the JSON response will contain an error like <code>{"error":"invalid URL"}</code><br>
HINT: to be sure that the submitted url points to a valid site you can use the function <code>dns.lookup(host, cb)</code> from the <code>dns</code> core module.</li>
<li>When I visit the shortened URL, it will redirect me to my original link.</li>
<li>I can <b>POST</b> a <b>URL</b> to <code>[project_url]/api/shorturl/new</code> and I will receive a shortened <b>URL</b> in the JSON response.<br><br><i>Example</i> : <code>{"original_url":"www.google.com","short_url":1}</code></li><br><br>
<li>If I pass an <b>invalid URL</b> that doesn't follow the <code>http(s)://www.example.com(/more/routes)</code> format, the JSON response will contain an error like <code>{"error":"invalid URL"}</code><br><br>
<b><i>HINT</i></b>: To be sure that the submitted URL points to a valid site, you can use the function <code>dns.lookup(host, cb)</code> from the <code>dns</code> core module. Incase you are new to NodeJs, you can learn about this function from its documentation.(<a href="https://nodejs.org/api/dns.html">NodeJs Documentation</a>)</li><br><br>
<li>When I visit the shortened URL, it will redirect me to my original link.</li><br>
</ol>
<h3>Short URL Creation </h3>