New rendering showcase

This is the section

This is the subsection

HTML showcase

<details> <summary>Details sample</summary> Yay! </details>

print("foo")

def function(x):
  print(x)

<a href='https://whtwnd.com'>a tag link</a>

|a|b| |--|--| |foo|bar|

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• [ ] TODO1
• [ ] TODO2

The picture now fits the screen properly