Given the string of a link in Markdown, return the equivalent HTML string.
A Markdown image has the following format: "[link_text](link_url)". Return the string of the HTML a tag with the href set to the link_url and the link_text as the tag content.
For example, given "[freeCodeCamp](https://freecodecamp.org/)" return '<a href="https://freecodecamp.org/">freeCodeCamp</a>';
Note: The console may not display HTML tags in strings when logging messages — check the browser console to see logs with tags included.