Handling links for headers

The following code....

from markdownify import markdownify, ATX

clean_html = '''
<a href="https://www.google.com">
<h4>Google Search</h4>
</a>
'''

md_content = markdownify(clean_html, heading_style=ATX)

print(md_content)

generates...

  [#### Google Search](https://www.google.com) 

It should generate the following MD instead, isn't it?

#### [Google Search](https://www.google.com)

Also, there are 2 white spaces in front that are unnecessary which confuses reliable MD readers.

Fixing the unnecessary white spaces in front of headers in ATX style and a better handling of the <a> tag would allow to generate much higher quality MD output for foundational html tag structures.

Thanks!

Sharing a good reference for me: Markdown Reference Guide

Start by reproducing the Python snippet in the issue and inspect how nested and

elements are converted with ATX headings. The change is done when the output places the link inside the heading, removes the leading spaces, and preserves the expected Markdown shown in the report.